Jonathan B. Losos
Jonathan B. Losos is an American evolutionary biologist, and herpetologist.
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Rebreathing Semi-aquatic Anoles: Just a Scuba Tank… or Something More? www.anoleannals.org/2025/10/15/r...
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
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...
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
awesome photos! Check out who wrote the text! www.cbsnews.com/video/how-a-...
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
Anolis cybotes, the Hispaniolan Stout Anole floridensis.com/2025/08/26/a...
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
New Orleans' Brown Anoles Can Tolerate Extraordinary Amounts of Lead in Their Blood www.anoleannals.org/2025/08/23/n...
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 [email protected] Tulane researchers found…
www.anoleannals.org
Israel's Gaza War Has Made Me Ashamed to Be a Jewish Zionist
open.substack.com/pub/perilous...
open.substack.com/pub/perilous...
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
At long last, The Cat's Meow featured in the New York Times...sort of. www.nytimes.com/.../books/re...
The Alluring Anoles of Alto Velo www.anoleannals.org/2025/07/19/t...
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
Some Thoughts on Trumpism and Soviet Communism on a Visit to Prague
open.substack.com/pub/perilous...
open.substack.com/pub/perilous...
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
Non-native Herps Still Increasing in the Most Heavily Invaded Herp Community in the World. www.anoleannals.org/2025/07/06/n...
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
How I built a 6 foot long stainless steel anole lizard sculpture: the Movie www.anoleannals.org/2025/06/03/h...
How I built a 6 foot long stainless steel anole lizard sculpture: the Movie
Read about Steve Nielsen, the artist, here.
www.anoleannals.org
Dewlap Drama in the Slender Anole: a Tale of Two Throats www.anoleannals.org/2025/06/01/d...
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
Caiman crocodilus, the Spectacled Caiman floridensis.com/2025/05/27/c...
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
A Three-Legged Lizard Mystery www.anoleannals.org/2025/05/25/a...
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
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!
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...
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
Understanding Animal Behaviour, a Non-Fiction Graphic Novel www.anoleannals.org/2025/05/16/u...
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
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!
Anolis garmani, the Jamaican Giant Anole floridensis.com/2025/05/06/a...
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
Singapore National Parks Studying Impact of Introduced Brown Anoles (and the Greenhouse Frog) www.anoleannals.org/2025/05/02/s...
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
Reposted by Jonathan B. Losos
“The skulls of a Pug or a Pekingese and a Persian cat are more similar to each other than either is to their ancestors, the wolf and the North African wildcat,” said @jblosos.bsky.social .... “I don’t think anyone would have expected that.” source.washu.edu/2025/04/copy...
Copycat evolution
Biologist Jonathan Losos, in Arts & Sciences, has documented evidence of a kind of "copycat" evolution between extremely short-faced breeds of cats and dogs. Generations of intentional breeding have l...
source.washu.edu
Reposted by Jonathan B. Losos
Here's a story about how breeding has smushed so many pet skulls that Persians and pugs resemble eachother more than their wild ancestors. Research from @jblosos.bsky.social 🧪 🐕 🐈 💀 source.washu.edu/2025/04/copy...
Copycat evolution
Biologist Jonathan Losos, in Arts & Sciences, has documented evidence of a kind of "copycat" evolution between extremely short-faced breeds of cats and dogs. Generations of intentional breeding have l...
source.washu.edu
Looking for Simple Anole Marking Methods www.anoleannals.org/2025/03/20/l...
Looking for Simple Anole Marking Methods
Hello fellow anole enthusiasts! Last year I marked Green Anoles (Anolis carolinensis) in my backyard using a permanent marker to chart their population size. I’m looking to do a similar thing this …
www.anoleannals.org
Invasive Agama Decreases Number of Brown Anoles, Maybe Increases Disease Threat to Humans www.anoleannals.org/2025/03/09/3...
Invasive Agama Decreases Number of Brown Anoles, Maybe Increases Disease Threat to Humans
from the pages of Phys.org: How a turf war between lizards in Florida impacts mosquitoes and maybe human health by Denise Hruby Credit: Pixabay/CC0 Public Domain Mosquitoes might be the bane of a s…
www.anoleannals.org