Christian Graca
@christiangraca.bsky.social
Reposted by Christian Graca
Museum Resource 🐍 Florida Snake ID Guide
Easy visual ID and searchable tool for learning about our state's snakes including habitat, range, diet & lookalikes.
Featured: Eastern Hog-nosed Snake (Heterodon platirhinos)
Full info and explore more:
www.floridamuseum.ufl.edu/florida-snak...
NON-VENOMOUS
Easy visual ID and searchable tool for learning about our state's snakes including habitat, range, diet & lookalikes.
Featured: Eastern Hog-nosed Snake (Heterodon platirhinos)
Full info and explore more:
www.floridamuseum.ufl.edu/florida-snak...
NON-VENOMOUS
Eastern Hog-nosed Snake
NON-VENOMOUS
Other common names
Eastern Hognose Snake, Puff Adder, Hissing Adder, Spreading Adder, Blow Viper, Hissing Sand Snake
Basic description
Most adult Eastern Hog-nosed Snakes are about 20-33 ...
www.floridamuseum.ufl.edu
January 9, 2026 at 8:45 PM
Museum Resource 🐍 Florida Snake ID Guide
Easy visual ID and searchable tool for learning about our state's snakes including habitat, range, diet & lookalikes.
Featured: Eastern Hog-nosed Snake (Heterodon platirhinos)
Full info and explore more:
www.floridamuseum.ufl.edu/florida-snak...
NON-VENOMOUS
Easy visual ID and searchable tool for learning about our state's snakes including habitat, range, diet & lookalikes.
Featured: Eastern Hog-nosed Snake (Heterodon platirhinos)
Full info and explore more:
www.floridamuseum.ufl.edu/florida-snak...
NON-VENOMOUS
Reposted by Christian Graca
Habitat and Hydrodynamics Influence Coral Reef and Seagrass Microbial and Exometabolite Dynamics https://www.biorxiv.org/content/10.64898/2026.01.12.699023v1
January 13, 2026 at 3:31 AM
Habitat and Hydrodynamics Influence Coral Reef and Seagrass Microbial and Exometabolite Dynamics https://www.biorxiv.org/content/10.64898/2026.01.12.699023v1
Reposted by Christian Graca
Mixed-vertebrate pollination traits and pollinators of Haageocereus acranthus (Cactaceae) in a Lomas desert ecosystem of coastal Peru https://www.biorxiv.org/content/10.64898/2026.01.08.698271v1
January 10, 2026 at 2:32 AM
Mixed-vertebrate pollination traits and pollinators of Haageocereus acranthus (Cactaceae) in a Lomas desert ecosystem of coastal Peru https://www.biorxiv.org/content/10.64898/2026.01.08.698271v1
Reposted by Christian Graca
Love how much fun they’re having!
January 9, 2026 at 9:33 PM
Love how much fun they’re having!
Reposted by Christian Graca
Time for a Good News Roundup from the Natural History Museum!
Find out some of the weird and wonderful discoveries that have been revealed in the past month (1/5) 🧵
Find out some of the weird and wonderful discoveries that have been revealed in the past month (1/5) 🧵
January 9, 2026 at 4:26 PM
Time for a Good News Roundup from the Natural History Museum!
Find out some of the weird and wonderful discoveries that have been revealed in the past month (1/5) 🧵
Find out some of the weird and wonderful discoveries that have been revealed in the past month (1/5) 🧵
Reposted by Christian Graca
Why genome sequence nudibranchs? 🌈🧬
Because these vibrant sea slugs hide some of the ocean’s most extraordinary biological tricks.
From toxin evolution and chemical defenses 🧪 to symbioses, pigmentation, and extreme metabolic adaptations, nudibranch genomes reveal how life innovates in the sea. 🌊
Because these vibrant sea slugs hide some of the ocean’s most extraordinary biological tricks.
From toxin evolution and chemical defenses 🧪 to symbioses, pigmentation, and extreme metabolic adaptations, nudibranch genomes reveal how life innovates in the sea. 🌊
January 9, 2026 at 5:13 PM
Why genome sequence nudibranchs? 🌈🧬
Because these vibrant sea slugs hide some of the ocean’s most extraordinary biological tricks.
From toxin evolution and chemical defenses 🧪 to symbioses, pigmentation, and extreme metabolic adaptations, nudibranch genomes reveal how life innovates in the sea. 🌊
Because these vibrant sea slugs hide some of the ocean’s most extraordinary biological tricks.
From toxin evolution and chemical defenses 🧪 to symbioses, pigmentation, and extreme metabolic adaptations, nudibranch genomes reveal how life innovates in the sea. 🌊
Reposted by Christian Graca
What can we learn from the bird flu outbreak that wiped out a generation of seals in Patagonia? Humanity must adopt and invest in the #OneHealth concept, write researchers from WCS Argentina. 🌎
How a Bird Flu Outbreak Wiped Out a Generation of Seals in Patagonia—and What It Means for Wildlife Conservation
observatory.wiki
January 6, 2026 at 7:14 PM
What can we learn from the bird flu outbreak that wiped out a generation of seals in Patagonia? Humanity must adopt and invest in the #OneHealth concept, write researchers from WCS Argentina. 🌎
Reposted by Christian Graca
On this day, a child was born who left an indelible mark on human history, transforming our understanding of the world. Famous for his long hair, he unraveled the mysteries of the heavens and brought light to the world.
Happy Birthday, Sir Isaac Newton.
(Born Dec 25, 1642, Julian Calendar)
Happy Birthday, Sir Isaac Newton.
(Born Dec 25, 1642, Julian Calendar)
December 25, 2025 at 6:04 PM
On this day, a child was born who left an indelible mark on human history, transforming our understanding of the world. Famous for his long hair, he unraveled the mysteries of the heavens and brought light to the world.
Happy Birthday, Sir Isaac Newton.
(Born Dec 25, 1642, Julian Calendar)
Happy Birthday, Sir Isaac Newton.
(Born Dec 25, 1642, Julian Calendar)
Reposted by Christian Graca
This is the most festive fish we could find to wish you a very merry #Fishmas from all of us at BHL. 🐟✨ Meet the Lena-Girawah, a spectacular parrotfish from Ceylon described in 1834 as “the most splendid of the class of fishes denominated Parrot”. www.biodiversitylibrary.org/page/38892308 #SciArt 🧪
December 25, 2025 at 2:27 PM
This is the most festive fish we could find to wish you a very merry #Fishmas from all of us at BHL. 🐟✨ Meet the Lena-Girawah, a spectacular parrotfish from Ceylon described in 1834 as “the most splendid of the class of fishes denominated Parrot”. www.biodiversitylibrary.org/page/38892308 #SciArt 🧪
Reposted by Christian Graca
NGC 2264, 2,700 light-years away in Monoceros, is a star-forming region known as the Christmas Tree Cluster, Fox Fur, and Unicorn Nebula. Spanning 80 light-years, it features vibrant emission and reflection nebulae shaped by energetic newborn stars.
Credit: Michael Kalika
Credit: Michael Kalika
December 25, 2025 at 3:25 PM
NGC 2264, 2,700 light-years away in Monoceros, is a star-forming region known as the Christmas Tree Cluster, Fox Fur, and Unicorn Nebula. Spanning 80 light-years, it features vibrant emission and reflection nebulae shaped by energetic newborn stars.
Credit: Michael Kalika
Credit: Michael Kalika
Reposted by Christian Graca
As 2025 comes to a close, we want to take a moment to share some of the conservation wins and highlights from the year. Check them all out: https://wwf.to/49biHtn.
December 23, 2025 at 4:05 PM
As 2025 comes to a close, we want to take a moment to share some of the conservation wins and highlights from the year. Check them all out: https://wwf.to/49biHtn.
Reposted by Christian Graca
The first ankylosaur hatchling has been discovered!
New analysis of dozens of small armoured dinosaur fossils revealed that they belonged to individuals that were less than a year old when they died.
Find out what we can learn from this discovery 👇
www.nhm.ac.uk/discover/new...
New analysis of dozens of small armoured dinosaur fossils revealed that they belonged to individuals that were less than a year old when they died.
Find out what we can learn from this discovery 👇
www.nhm.ac.uk/discover/new...
First armoured dinosaur hatchling discovered in China | Natural History Museum
The mystery surrounding dozens of small dinosaur fossils has finally been solved.
www.nhm.ac.uk
December 15, 2025 at 6:22 PM
The first ankylosaur hatchling has been discovered!
New analysis of dozens of small armoured dinosaur fossils revealed that they belonged to individuals that were less than a year old when they died.
Find out what we can learn from this discovery 👇
www.nhm.ac.uk/discover/new...
New analysis of dozens of small armoured dinosaur fossils revealed that they belonged to individuals that were less than a year old when they died.
Find out what we can learn from this discovery 👇
www.nhm.ac.uk/discover/new...
Reposted by Christian Graca
More than 2000 years ago, a woman was laid to rest in southern England.
Since her skeleton was rediscovered in 2012, our understanding of Beachy Head Woman has changed a lot over the past decade as new technology has improved.
Find out what's now been revealed 👇
www.nhm.ac.uk/discover/new...
Since her skeleton was rediscovered in 2012, our understanding of Beachy Head Woman has changed a lot over the past decade as new technology has improved.
Find out what's now been revealed 👇
www.nhm.ac.uk/discover/new...
The changing story of the Beachy Head Woman | Natural History Museum
The identity of a mysterious Roman-era skeleton found in southern England may have finally been resolved.
www.nhm.ac.uk
December 17, 2025 at 11:05 AM
More than 2000 years ago, a woman was laid to rest in southern England.
Since her skeleton was rediscovered in 2012, our understanding of Beachy Head Woman has changed a lot over the past decade as new technology has improved.
Find out what's now been revealed 👇
www.nhm.ac.uk/discover/new...
Since her skeleton was rediscovered in 2012, our understanding of Beachy Head Woman has changed a lot over the past decade as new technology has improved.
Find out what's now been revealed 👇
www.nhm.ac.uk/discover/new...
Reposted by Christian Graca
Animals Are More Rational Than You Think:
From tool-making crows to alligators that lure birds with twigs, animals may be more rational than we ever imagined.
by Mark Rowlands
From tool-making crows to alligators that lure birds with twigs, animals may be more rational than we ever imagined.
by Mark Rowlands
Animals Are More Rational Than You Think
From tool-making crows to alligators that lure birds with twigs, animals may be more rational than we ever imagined.
thereader.mitpress.mit.edu
December 22, 2025 at 9:03 PM
Animals Are More Rational Than You Think:
From tool-making crows to alligators that lure birds with twigs, animals may be more rational than we ever imagined.
by Mark Rowlands
From tool-making crows to alligators that lure birds with twigs, animals may be more rational than we ever imagined.
by Mark Rowlands
Reposted by Christian Graca
Here are the biggest breakthroughs in biology this year.
The Year in Biology | Quanta Magazine
Take a jaunt through a jungle of strange neurons underlying your sense of touch, hundreds of millions of years of animal evolution and the dense neural networks of brains and AIs.
www.quantamagazine.org
December 18, 2025 at 4:46 PM
Here are the biggest breakthroughs in biology this year.
Reposted by Christian Graca
🐠It's the most fin-tastic time of the year! Dive into the holidays with some festive fish from our Ichthyology Collection with Museum Specialist Hannah Sinclair.
December 16, 2025 at 3:59 PM
🐠It's the most fin-tastic time of the year! Dive into the holidays with some festive fish from our Ichthyology Collection with Museum Specialist Hannah Sinclair.
Reposted by Christian Graca
MWRD scientists reported catching the biggest smallmouth bass in over 51 years of MWRD fish monitoring on the Chicago Area Waterway System (CAWS).
The fish weighed 3.9 pounds (1,770 grams) with a length of 19.7 inches (500 mm).
mwrd.org/news/mwrd-sc...
The fish weighed 3.9 pounds (1,770 grams) with a length of 19.7 inches (500 mm).
mwrd.org/news/mwrd-sc...
December 16, 2025 at 3:03 PM
MWRD scientists reported catching the biggest smallmouth bass in over 51 years of MWRD fish monitoring on the Chicago Area Waterway System (CAWS).
The fish weighed 3.9 pounds (1,770 grams) with a length of 19.7 inches (500 mm).
mwrd.org/news/mwrd-sc...
The fish weighed 3.9 pounds (1,770 grams) with a length of 19.7 inches (500 mm).
mwrd.org/news/mwrd-sc...
Reposted by Christian Graca
Removing federal Endangered Species Act protections for threatened grizzly bears would allow Montana, Idaho, and Wyoming to start trophy hunting seasons that would put grizzlies back on the path toward extinction.
Speak up for the Great Bear!
>>> wildernesswatch.salsalabs.org/oppose-grizz...
Speak up for the Great Bear!
>>> wildernesswatch.salsalabs.org/oppose-grizz...
December 10, 2025 at 7:51 PM
Removing federal Endangered Species Act protections for threatened grizzly bears would allow Montana, Idaho, and Wyoming to start trophy hunting seasons that would put grizzlies back on the path toward extinction.
Speak up for the Great Bear!
>>> wildernesswatch.salsalabs.org/oppose-grizz...
Speak up for the Great Bear!
>>> wildernesswatch.salsalabs.org/oppose-grizz...
Reposted by Christian Graca
#DYK? Trilobites ruled the Earth longer than the dinosaurs! It took three major mass extinctions to end trilobites’ more than 250-milion year evolutionary lifespan. Join Museum Curator Melanie Hopkins to explore these arthropods through the Museum’s extensive collection of trilobite specimens.
The Most Successful Animals You've Never Seen (Spoiler: It's Trilobites)
YouTube video by American Museum of Natural History
youtu.be
December 9, 2025 at 5:31 PM
#DYK? Trilobites ruled the Earth longer than the dinosaurs! It took three major mass extinctions to end trilobites’ more than 250-milion year evolutionary lifespan. Join Museum Curator Melanie Hopkins to explore these arthropods through the Museum’s extensive collection of trilobite specimens.
Reposted by Christian Graca
Meet the Sulawesi bear cuscus! This arboreal marsupial lives in tropical forests throughout parts of Indonesia. It moves slowly & spends much of its time resting & digesting all of the fruits, flowers, & leaves that it eats.
Photo: Dario Nessi, Royle Safari, CC BY-NC 4.0, iNaturalist
Photo: Dario Nessi, Royle Safari, CC BY-NC 4.0, iNaturalist
December 8, 2025 at 7:20 PM
Meet the Sulawesi bear cuscus! This arboreal marsupial lives in tropical forests throughout parts of Indonesia. It moves slowly & spends much of its time resting & digesting all of the fruits, flowers, & leaves that it eats.
Photo: Dario Nessi, Royle Safari, CC BY-NC 4.0, iNaturalist
Photo: Dario Nessi, Royle Safari, CC BY-NC 4.0, iNaturalist
Reposted by Christian Graca
Hummingbird Hawk-moths have a remarkable resemblance to Hummingbirds, hovering to feed on nectar.. #HummingbirdHawkMoth #hawkmoth #moth #moths #nature #wildlife #hawkmoths
December 8, 2025 at 8:54 PM
Hummingbird Hawk-moths have a remarkable resemblance to Hummingbirds, hovering to feed on nectar.. #HummingbirdHawkMoth #hawkmoth #moth #moths #nature #wildlife #hawkmoths
Reposted by Christian Graca
In the late 1830s, Karl Weierstrass dropped out of university. He is said to have spent his school years drinking and fencing. Decades later, he published a function that threatened everything mathematicians thought they understood about calculus. www.quantamagazine.org/the-jagged-m...
December 7, 2025 at 4:46 PM
In the late 1830s, Karl Weierstrass dropped out of university. He is said to have spent his school years drinking and fencing. Decades later, he published a function that threatened everything mathematicians thought they understood about calculus. www.quantamagazine.org/the-jagged-m...
Reposted by Christian Graca
Reposted by Christian Graca
In the waters of San Diego’s Mission Bay, a new hybrid seagrass has begun to grow. It is a cross between shallow-water Zostera marina and deeper-water Zostera pacifica, whose tolerance for low-light conditions is favorable as coastal waters become increasingly murky.
www.salk.edu/news-release....
www.salk.edu/news-release....
November 25, 2025 at 5:58 PM
In the waters of San Diego’s Mission Bay, a new hybrid seagrass has begun to grow. It is a cross between shallow-water Zostera marina and deeper-water Zostera pacifica, whose tolerance for low-light conditions is favorable as coastal waters become increasingly murky.
www.salk.edu/news-release....
www.salk.edu/news-release....