Evolutionary Biology

The Mongolian leader left a strong footprint in the Y chromosomes of his modern descendants, but he was not the only one

The ease with which certain sounds are produced in different climes plays a role in the development of spoken languages. Christopher Intagliata reports

The four oldest-known snake fossils were announced Tuesday, the most ancient of which was a roughly 25-cm-long reptile unearthed in a quarry near Oxford, England, that lived about 167 million years ago

Last summer, researchers demonstrated that non-invasive imaging combined with a staining technique enables the fast comparison and study of earthworm species and other animals in unprecedented detail.

The cone snail's venom contains not only neurotoxins, but insulin, too—which stuns the fish it preys on. Christopher Intagliata reports

A design flaw in the carnivorous plant could be its greatest asset

Scientists find translucent fish in a wedge of water hidden under 740 meters of ice, 850 kilometers from sunlight

Strains of the lab workhorse roundworm C. elegans that lived longer added more time being frail and had the same portion of their lives being healthy as normal worms. The work has implications for life-extension ideas such as caloric restriction. Dina Fine Maron reports

 

Here's a very brief article to a group of frogs. It's a slightly modified version of an article that initially appeared on Tet Zoo ver 2 during November 2007.

North America's smallest and rarest wolves will finally have the full protection of the Endangered Species Act. Well, almost. Mexican gray wolves (Canis lupus baileyi) nearly went extinct 40 years ago.

Midway through the school year, parents and teachers are starting to plan (and fundraise) for winter and spring field trips. Among the most popular destinations is the science museum.

“Why is it that an animal that is actively trying to kill us, such as a lion, gets more respect than one that is only trying to nibble on us a little, without causing much harm?” -Piotr Naskrecki Biologist Piotr Naskrecki, who traveled with me to Belize last year, returned home to find himself incubating [...]