Jonathan Losos
@jblosos.bsky.social
Evolutionary biologist, herpetologist, cat lover.
Jonathan B. Losos is an American evolutionary biologist, and herpetologist.
Source: Wikipedia
Environmental science
40%
Biology
25%
Amazon has decided to unload my books at bargain basement prices!
Spoil Islands in Florida: an Opportunity for Anole Experiments in the Wild
Invasive species are a growing problem across our increasingly globalized planet. They are often adept at establishing stable population sizes very quickly, which allows them to outcompete native s…
www.anoleannals.org
Spoil Islands in Florida: an Opportunity for Anole Experiments in the Wild www.anoleannals.org/2025/10/30/s...
Feline: Photographs
Amazon.com: Feline: Photographs: 9781419773648: Flach, Tim, Losos, Jonathan: Books
www.amazon.com
If you look carefully, you'll see that the text is written by yours truly. I won't comment on that, but ther photographs are extraordinary! www.amazon.com/Feline-Photo...
Rebreathing Semi-aquatic Anoles: Just a Scuba Tank… or Something More?
Over the past several years, semi-aquatic anoles experienced a bit of viral fame for “scuba diving,” a nickname for their ability to rebreathe a bubble of air over their nostrils while diving…
www.anoleannals.org
Rebreathing Semi-aquatic Anoles: Just a Scuba Tank… or Something More? www.anoleannals.org/2025/10/15/r...
3-legged lizards can thrive against all odds, challenging assumptions about how evolution works in the wild
Most lizards probably don’t survive devastating injuries. But a new study documents 122 cases of limb loss across 58 species – these exceptions shine a new light on natural selection.
theconversation.com
3-legged lizards can thrive against all odds, challenging assumptions about how evolution works in the wild
theconversation.com/3-legged-liz...
theconversation.com/3-legged-liz...
Jonathan Losos
@jblosos.bsky.social
· Oct 4
How a wildlife photographer found one of his biggest challenges with house cats
Wildlife photographer Tim Flach has been around the world to get the perfect shot. But his latest book, titled "Feline," may have been one his biggest challenges.
www.cbsnews.com
awesome photos! Check out who wrote the text! www.cbsnews.com/video/how-a-...
Jonathan Losos
@jblosos.bsky.social
· Sep 4
More on Anole Eye Spots
Some green anoles sometimes temporarily develop a black spot behind their eyes. We had a great post on why this happens in 2011. Spoiler: it’s a sign of stress. Reader Seth Whaland has provid…
www.anoleannals.org
More on Anole Eye Spots www.anoleannals.org/2025/09/04/m...
Jonathan Losos
@jblosos.bsky.social
· Aug 26
Anolis cybotes, the Hispaniolan Stout Anole
Last updated on Tuesday 26 August 2025.Florida is home to an array of non-native Anolis species. Some of these introduced species are extremely widespread, such as Anolis sagrei (the Cuban brown an…
floridensis.com
Anolis cybotes, the Hispaniolan Stout Anole floridensis.com/2025/08/26/a...
Jonathan Losos
@jblosos.bsky.social
· Aug 24
New Orleans’ Brown Anoles Can Tolerate Extraordinary Amounts of Lead in Their Blood
Tulane University reports: Lead-resistant lizards in New Orleans could hold clues to combating lead poisoning August 20, 2025 9:00 AM Stacey Plaisance splaisance@tulane.edu Tulane researchers found…
www.anoleannals.org
New Orleans' Brown Anoles Can Tolerate Extraordinary Amounts of Lead in Their Blood www.anoleannals.org/2025/08/23/n...
Jonathan Losos
@jblosos.bsky.social
· Aug 7
Israel's Gaza War Has Made Me Ashamed to Be a Jewish Zionist
Israel's fight against Hamas started as a just war, but is now a moral travesty
open.substack.com
Israel's Gaza War Has Made Me Ashamed to Be a Jewish Zionist
open.substack.com/pub/perilous...
open.substack.com/pub/perilous...
Jonathan Losos
@jblosos.bsky.social
· Jul 23
At long last, The Cat's Meow featured in the New York Times...sort of. www.nytimes.com/.../books/re...
Jonathan Losos
@jblosos.bsky.social
· Jul 19
The Alluring Anoles of Alto Velo
Although I have not been a prolific poster on AA, I have enjoyed contributing articles about the obscure and rarely seen anoles of the Greater Antilles and Lucayan archipelagos, such as Anolis erne…
www.anoleannals.org
The Alluring Anoles of Alto Velo www.anoleannals.org/2025/07/19/t...
Jonathan Losos
@jblosos.bsky.social
· Jul 19
Some Thoughts on Trumpism and Soviet Communism on a Visit to Prague
With Trump’s tariffs and immigration police, there are echoes of Eastern Europe’s authoritarian past
open.substack.com
Some Thoughts on Trumpism and Soviet Communism on a Visit to Prague
open.substack.com/pub/perilous...
open.substack.com/pub/perilous...
Jonathan Losos
@jblosos.bsky.social
· Jul 6
Non-native Herps Still Increasing in the Most Heavily Invaded Herp Community in the World.
There truly is never a dull moment in South Florida, especially for those of us who love herps. South Florida is a herper’s paradise with at least 63 exotic herps recorded in the state in addition …
www.anoleannals.org
Non-native Herps Still Increasing in the Most Heavily Invaded Herp Community in the World. www.anoleannals.org/2025/07/06/n...
Jonathan Losos
@jblosos.bsky.social
· Jun 3
How I built a 6 foot long stainless steel anole lizard sculpture: the Movie
Read about Steve Nielsen, the artist, here.
www.anoleannals.org
How I built a 6 foot long stainless steel anole lizard sculpture: the Movie www.anoleannals.org/2025/06/03/h...
Jonathan Losos
@jblosos.bsky.social
· Jun 2
Dewlap Drama in the Slender Anole: a Tale of Two Throats
Color us intrigued! In the world of Anolis lizards, the dewlap—a colorful throat fan used for communication—is one of the most iconic features. It’s been flaunted, flashed, and filmed in countless …
www.anoleannals.org
Dewlap Drama in the Slender Anole: a Tale of Two Throats www.anoleannals.org/2025/06/01/d...
Jonathan Losos
@jblosos.bsky.social
· May 27
Caiman crocodilus, the Spectacled Caiman
Last updated Tuesday 27 May 2025. This is a shorter post because, to date, I’ve only encountered and photographed one non-native Spectacled caiman in Florida. Native to the lower portion of C…
floridensis.com
Caiman crocodilus, the Spectacled Caiman floridensis.com/2025/05/27/c...
Jonathan Losos
@jblosos.bsky.social
· May 25
A Three-Legged Lizard Mystery
Anole Annals has featured a series of posts on three-legged lizards over the years (e.g., here and here). Now we need help. Some time around 2017, April Brown contributed a photo of a brown anole m…
www.anoleannals.org
A Three-Legged Lizard Mystery www.anoleannals.org/2025/05/25/a...
Jonathan Losos
@jblosos.bsky.social
· May 18
The new rule would limit the Act to protecting species from intentional take, i.e., killing. This would be catastrophic for endangered species. While intentional take certainly threatens wild populations, habitat modification is the primary driver of biodiversity loss. Act today--deadline is Monday!
Jonathan Losos
@jblosos.bsky.social
· May 18
Rescinding the Definition of “Harm” Under the Endangered Species Act
The U.S. Fish and Wildlife Service (FWS) and the National Marine Fisheries Service (NMFS) (collectively referred to as the Services or we) are proposing to rescind the regulatory definition of "harm" ...
www.federalregister.gov
USFWS and NOAA have a proposed rescinding the definition of “harm” under the Endangered Species Act. Presently, “harm” includes habitat modifications, such as those due to land-use change, invasive species, pollution. The new rule would be much more limited
www.federalregister.gov/documents/20...
www.federalregister.gov/documents/20...
Jonathan Losos
@jblosos.bsky.social
· May 18
Anolis cannibalis
I live in Bermuda. Many years ago, my daughter and I witnessed a large male Graham’s anole devour a small female, same species. We were horrified as we had watched these particular individua…
www.anoleannals.org
Anolis cannibalis www.anoleannals.org/2025/05/17/a...
Jonathan Losos
@jblosos.bsky.social
· May 16
Understanding Animal Behaviour, a Non-Fiction Graphic Novel
I dislike textbooks. I still remember the dismay as an undergraduate student of spending all that money to buy hugely expensive textbooks. And if there was any sense of excitement on cracking the c…
www.anoleannals.org
Understanding Animal Behaviour, a Non-Fiction Graphic Novel www.anoleannals.org/2025/05/16/u...
Reposted by Jonathan B. Losos
I’m beyond proud to share that I’ve officially earned my Ph.D. and served as Student Marshal for the School of Medicine at WashU! Grateful to my advisor, @jblosos.bsky.social, my committee, and everyone who supported me. And now, on to the next chapter!
Jonathan Losos
@jblosos.bsky.social
· May 6
Anolis garmani, the Jamaican Giant Anole
Admittedly, I’m playing a bit of an a-hole card by choosing Anolis garmani to be my first Anolis species on the current iteration of Floridensis. The Jamaican giant anole is a non-native (and…
floridensis.com
Anolis garmani, the Jamaican Giant Anole floridensis.com/2025/05/06/a...
Jonathan Losos
@jblosos.bsky.social
· May 2
Singapore National Parks Studying Impact of Introduced Brown Anoles (and the Greenhouse Frog)
From the pages of The Straits Times: NParks monitoring whether brown anole, greenhouse frog pose threat to native species Nparks said that it is aware of the presence of the brown anole (left) and …
www.anoleannals.org
Singapore National Parks Studying Impact of Introduced Brown Anoles (and the Greenhouse Frog) www.anoleannals.org/2025/05/02/s...