Ariel Kahrl
@arielkahrl.bsky.social
Assistant Professor at Hamilton College studying amphibian reproduction and sperm morphology. Ask me anything about sperm evolution! 〰️⚪
Thrilled to be at the @nhm.org collecting testis from frogs this week. We are hopeful that these museum specimens will allow us to look at the ultrastructure of sperm in a diverse set of frogs with different fertilization modes (pictured is a foam nesting flying frog with giant balls!)
August 29, 2025 at 8:01 AM
Thrilled to be at the @nhm.org collecting testis from frogs this week. We are hopeful that these museum specimens will allow us to look at the ultrastructure of sperm in a diverse set of frogs with different fertilization modes (pictured is a foam nesting flying frog with giant balls!)
New amphibian gifts to add to my menagerie
June 10, 2025 at 9:26 PM
New amphibian gifts to add to my menagerie
The first batch of wall of famers! ⚪〰️
June 6, 2025 at 2:07 PM
The first batch of wall of famers! ⚪〰️
The male green frogs just started calling tonight. Where did I find the females? Sitting in the grass, avoiding them 😅
June 6, 2025 at 1:45 AM
The male green frogs just started calling tonight. Where did I find the females? Sitting in the grass, avoiding them 😅
Congratulations seniors! So proud of all of you! 🐸 #hamiltoncollege2025
May 26, 2025 at 1:21 AM
Congratulations seniors! So proud of all of you! 🐸 #hamiltoncollege2025
Reposted by Ariel Kahrl
Celebrating six months 🥳
May 18, 2025 at 8:14 PM
Celebrating six months 🥳
Reposted by Ariel Kahrl
Our goal is to have 1000 SUFS Teach Ins across the US, by 9/30.
*GASP* 😮
We know, it's a big goal.
If you've received tax dollars for your science, you have a responsibility to inform *your* community what is at stake: public health, the economy, innovation, and America's global leadership.
*GASP* 😮
We know, it's a big goal.
If you've received tax dollars for your science, you have a responsibility to inform *your* community what is at stake: public health, the economy, innovation, and America's global leadership.
May 18, 2025 at 6:21 PM
Our goal is to have 1000 SUFS Teach Ins across the US, by 9/30.
*GASP* 😮
We know, it's a big goal.
If you've received tax dollars for your science, you have a responsibility to inform *your* community what is at stake: public health, the economy, innovation, and America's global leadership.
*GASP* 😮
We know, it's a big goal.
If you've received tax dollars for your science, you have a responsibility to inform *your* community what is at stake: public health, the economy, innovation, and America's global leadership.
Reposted by Ariel Kahrl
Racist and sexist roots in the cancellation of NSF grants under Trump:
Grants with female PIs canceled 2x more than men
Grants with Black PIs canceled 4x over White PIs
Grants with Hispanic PIs canceled 2x over White PIs
Grants with PIs with disabilities canceled 2x more than without
Grants with female PIs canceled 2x more than men
Grants with Black PIs canceled 4x over White PIs
Grants with Hispanic PIs canceled 2x over White PIs
Grants with PIs with disabilities canceled 2x more than without
Another scoop from Jeff Mervis (@policyhound.bsky.social): NSF's ~1400 grant terminations have disproportionately affected PIs from groups underrepresented in science: women, racial & ethnic minorities, & those with disabilities. 1/3
www.science.org/content/arti...
www.science.org/content/arti...
Trump officials take steps toward a radically different NSF
Efforts to shrink staff, budget, and focus have alarmed members of Congress
www.science.org
May 13, 2025 at 9:29 PM
Racist and sexist roots in the cancellation of NSF grants under Trump:
Grants with female PIs canceled 2x more than men
Grants with Black PIs canceled 4x over White PIs
Grants with Hispanic PIs canceled 2x over White PIs
Grants with PIs with disabilities canceled 2x more than without
Grants with female PIs canceled 2x more than men
Grants with Black PIs canceled 4x over White PIs
Grants with Hispanic PIs canceled 2x over White PIs
Grants with PIs with disabilities canceled 2x more than without
Developing a new course with a friend in Sociology to combine our knowledge about sex and gender from biological and sociological perspectives. If you teach a course like this I would love to hear from you!
May 8, 2025 at 1:39 PM
Developing a new course with a friend in Sociology to combine our knowledge about sex and gender from biological and sociological perspectives. If you teach a course like this I would love to hear from you!
I can't beat @lizardmichele.bsky.social description of this new paper, so I won't try! 😅
New paper alert! 🦎
Lizard sperm come in many varieties.
Is that due to testicular properties?
Only yes, we concluded
With phylogeny included
Because sperm and testes evolve neutrally.
See the full story w @arielkahrl.bsky.social, Hannah Hall, Bela Carson in Biol J Linn Soc: doi.org/10.1093/biol...
Lizard sperm come in many varieties.
Is that due to testicular properties?
Only yes, we concluded
With phylogeny included
Because sperm and testes evolve neutrally.
See the full story w @arielkahrl.bsky.social, Hannah Hall, Bela Carson in Biol J Linn Soc: doi.org/10.1093/biol...
April 15, 2025 at 2:57 PM
I can't beat @lizardmichele.bsky.social description of this new paper, so I won't try! 😅
Reposted by Ariel Kahrl
New paper alert! 🦎
Lizard sperm come in many varieties.
Is that due to testicular properties?
Only yes, we concluded
With phylogeny included
Because sperm and testes evolve neutrally.
See the full story w @arielkahrl.bsky.social, Hannah Hall, Bela Carson in Biol J Linn Soc: doi.org/10.1093/biol...
Lizard sperm come in many varieties.
Is that due to testicular properties?
Only yes, we concluded
With phylogeny included
Because sperm and testes evolve neutrally.
See the full story w @arielkahrl.bsky.social, Hannah Hall, Bela Carson in Biol J Linn Soc: doi.org/10.1093/biol...
April 15, 2025 at 2:36 PM
New paper alert! 🦎
Lizard sperm come in many varieties.
Is that due to testicular properties?
Only yes, we concluded
With phylogeny included
Because sperm and testes evolve neutrally.
See the full story w @arielkahrl.bsky.social, Hannah Hall, Bela Carson in Biol J Linn Soc: doi.org/10.1093/biol...
Lizard sperm come in many varieties.
Is that due to testicular properties?
Only yes, we concluded
With phylogeny included
Because sperm and testes evolve neutrally.
See the full story w @arielkahrl.bsky.social, Hannah Hall, Bela Carson in Biol J Linn Soc: doi.org/10.1093/biol...
Reposted by Ariel Kahrl
🚨 Everyone needs to call their Dem Senator right now. They are starting to cave.
Tell them:
1. Vote NO on Cloture
AND
2. Vote NO on the Republican spending bill.
Don’t let them pivot to reconciliation. GOP doesn’t need Dem votes on that and they know it.
TODAY is the showdown.
🤳🏽: (202) 224-3121
Tell them:
1. Vote NO on Cloture
AND
2. Vote NO on the Republican spending bill.
Don’t let them pivot to reconciliation. GOP doesn’t need Dem votes on that and they know it.
TODAY is the showdown.
🤳🏽: (202) 224-3121
March 12, 2025 at 2:19 PM
🚨 Everyone needs to call their Dem Senator right now. They are starting to cave.
Tell them:
1. Vote NO on Cloture
AND
2. Vote NO on the Republican spending bill.
Don’t let them pivot to reconciliation. GOP doesn’t need Dem votes on that and they know it.
TODAY is the showdown.
🤳🏽: (202) 224-3121
Tell them:
1. Vote NO on Cloture
AND
2. Vote NO on the Republican spending bill.
Don’t let them pivot to reconciliation. GOP doesn’t need Dem votes on that and they know it.
TODAY is the showdown.
🤳🏽: (202) 224-3121
Reposted by Ariel Kahrl
We had a fabulous turnout for our mentoring villages at @sicb.bsky.social this year! Thanks so much to all of the mentees who came out, and to the mentors who volunteered their time to give insight and advice. It does indeed take a village!
Because #science matters & so does mentoring:
It Takes a Village: #Mentoring Village Uplifts #PUI-Curious #Graduate #Students & #Postdocs at @sicb.bsky.social 2025
by ICB blogger/#scientist Colleen Hecker, @floridaatlantic.bsky.social
integrativeandcomparativebiology.wordpress.com/2025/03/07/i...
It Takes a Village: #Mentoring Village Uplifts #PUI-Curious #Graduate #Students & #Postdocs at @sicb.bsky.social 2025
by ICB blogger/#scientist Colleen Hecker, @floridaatlantic.bsky.social
integrativeandcomparativebiology.wordpress.com/2025/03/07/i...
March 10, 2025 at 6:01 PM
We had a fabulous turnout for our mentoring villages at @sicb.bsky.social this year! Thanks so much to all of the mentees who came out, and to the mentors who volunteered their time to give insight and advice. It does indeed take a village!
ISO advice for video monitoring! I am looking to buy some cameras to monitor salamanders in a dark room without disturbing them. I am considering security cameras with IR, but would potentially like cameras that would allow me to be more flexible (e.g. not need wifi for recording). TIA!
March 6, 2025 at 6:55 PM
ISO advice for video monitoring! I am looking to buy some cameras to monitor salamanders in a dark room without disturbing them. I am considering security cameras with IR, but would potentially like cameras that would allow me to be more flexible (e.g. not need wifi for recording). TIA!
Reposted by Ariel Kahrl
Just received notice that our grant was terminated. 5R24AG066599-03
TheRiseRegistry.org
TheRiseRegistry.org
March 1, 2025 at 1:36 AM
Just received notice that our grant was terminated. 5R24AG066599-03
TheRiseRegistry.org
TheRiseRegistry.org
Reposted by Ariel Kahrl
My latest with @sciam.bsky.social "Politics, Not Biology, Is Driving Legal Efforts to Classify Sex". Please do read the linked Executive Orders and HS statements that this piece is in response to. I am hoping of a better dialogue on this... www.scientificamerican.com/article/the-...
Politics, Not Biology, Is Driving Legal Efforts to Classify Sex
Sex is not one single, simple, uniform biological reality, so biology cannot be invoked as a basis for “immutable” legal classifications
www.scientificamerican.com
February 25, 2025 at 2:45 PM
My latest with @sciam.bsky.social "Politics, Not Biology, Is Driving Legal Efforts to Classify Sex". Please do read the linked Executive Orders and HS statements that this piece is in response to. I am hoping of a better dialogue on this... www.scientificamerican.com/article/the-...
Reposted by Ariel Kahrl
Another way to put this:
Musk and his twerps have exposed us to pandemics, broken science, stolen all your data, endangered the U.S. payments system, threatened air traffic control, and cut off HIV medication to 20m people in order to save ::checks notes:: 2/10th of a percent of the federal budget.
Musk and his twerps have exposed us to pandemics, broken science, stolen all your data, endangered the U.S. payments system, threatened air traffic control, and cut off HIV medication to 20m people in order to save ::checks notes:: 2/10th of a percent of the federal budget.
DOGE says it has saved $55 billion in federal spending so far, but its website only accounts for $16.6 billion of that
DOGE Says It’s Saved $55 Billion, Itemized Data Show Far Less
The federal cost-cutting effort dubbed the Department of Government Efficiency says it has saved $55 billion in federal spending so far, but its website only accounts for $16.6 billion of that.
www.bloomberg.com
February 20, 2025 at 10:51 AM
Another way to put this:
Musk and his twerps have exposed us to pandemics, broken science, stolen all your data, endangered the U.S. payments system, threatened air traffic control, and cut off HIV medication to 20m people in order to save ::checks notes:: 2/10th of a percent of the federal budget.
Musk and his twerps have exposed us to pandemics, broken science, stolen all your data, endangered the U.S. payments system, threatened air traffic control, and cut off HIV medication to 20m people in order to save ::checks notes:: 2/10th of a percent of the federal budget.
If you are looking for a 1 year position to build your teaching skills, please consider applying for this 1yr VAP! Our dept and students are great, and you will have resources to continue research if you choose. Please help share widely.
Deadline is Feb 24th!
Deadline is Feb 24th!
I'm going on sabbatical next year and hamilton college is hiring a VAP to replace me! This person will teach Vertebrate Physiology (lect+lab), Intro bio, and an upper-level course in their area of expertise. Details in the link!
apply.interfolio.com/160780?fbcli...
apply.interfolio.com/160780?fbcli...
Apply - Interfolio
{{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
apply.interfolio.com
February 15, 2025 at 5:39 PM
If you are looking for a 1 year position to build your teaching skills, please consider applying for this 1yr VAP! Our dept and students are great, and you will have resources to continue research if you choose. Please help share widely.
Deadline is Feb 24th!
Deadline is Feb 24th!
Reposted by Ariel Kahrl
I usually reserve this account for my personal views; but today I want to represent my position as President of @asn-amnat.bsky.social to post a message that will shortly go out to the membership of the American Society of Naturalists from the ASN Executive Council
February 6, 2025 at 4:28 PM
I usually reserve this account for my personal views; but today I want to represent my position as President of @asn-amnat.bsky.social to post a message that will shortly go out to the membership of the American Society of Naturalists from the ASN Executive Council
Reposted by Ariel Kahrl
Please share!
Letter to the US President and Congress on the Scientific Understanding of Sex and Gender
President Donald J Trump Washington, DC Members of the US Congress Washington, DC February 5, 2025 RE: Scientific Understanding of Sex and Gender Dear President Trump and Members of the US Congr...
www.evolutionsociety.org
February 8, 2025 at 4:48 PM
Please share!
Reposted by Ariel Kahrl
Posted with alt text 🧪
February 6, 2025 at 11:31 PM
Posted with alt text 🧪
What. The. Actual. Fuck.
February 5, 2025 at 11:01 PM
What. The. Actual. Fuck.
Reposted by Ariel Kahrl
Russ Vought devised these illegal holds on funding for disaster relief, medical research, student aid, child care, nutrition, and foreign assistance, as well as purges of the federal workforce.
If confirmed as OMB Director he’ll keep this up for four years.
The Senate should reject his nomination.
If confirmed as OMB Director he’ll keep this up for four years.
The Senate should reject his nomination.
January 28, 2025 at 2:09 PM
Russ Vought devised these illegal holds on funding for disaster relief, medical research, student aid, child care, nutrition, and foreign assistance, as well as purges of the federal workforce.
If confirmed as OMB Director he’ll keep this up for four years.
The Senate should reject his nomination.
If confirmed as OMB Director he’ll keep this up for four years.
The Senate should reject his nomination.
Reposted by Ariel Kahrl
NYT reporting mass immigrant ICE raids have begun in Chicago.
I'm an immigrant & Chicago based human rights lawyer. I wrote this on how to handle ICE, actions to protect our immigrant neighbors, & debunking anti-immigrant hate.
No paywall. Please share widely. www.qasimrashid.com/p/trumps-mas...
I'm an immigrant & Chicago based human rights lawyer. I wrote this on how to handle ICE, actions to protect our immigrant neighbors, & debunking anti-immigrant hate.
No paywall. Please share widely. www.qasimrashid.com/p/trumps-mas...
Trump's Mass Anti-Immigrant Raids to Begin
Here are action items to protect your immigrant neighbors, answers to common FAQs, and insights to debunk anti-immigrant propaganda
www.qasimrashid.com
January 26, 2025 at 7:41 PM
NYT reporting mass immigrant ICE raids have begun in Chicago.
I'm an immigrant & Chicago based human rights lawyer. I wrote this on how to handle ICE, actions to protect our immigrant neighbors, & debunking anti-immigrant hate.
No paywall. Please share widely. www.qasimrashid.com/p/trumps-mas...
I'm an immigrant & Chicago based human rights lawyer. I wrote this on how to handle ICE, actions to protect our immigrant neighbors, & debunking anti-immigrant hate.
No paywall. Please share widely. www.qasimrashid.com/p/trumps-mas...