The resulting chimera mouse confirms that single-celled organisms had the biolgical tools to develop specialized cells before ...

In reality, they likely belong to the western deer mouse. As the animal hops across the snow ... For starters, they are a major food source for predators, including owls, hawks, snakes, bobcats ...

The researchers started by making mouse iPSCs the usual way, except for one change: they swapped out Sox2, one of the Yamanaka factors, for the corresponding Sox gene from choanoflagellates.

These tiny rodents can jettison strips of skin from their own hides when captured by predators, and heal those same wounds with extraordinary speed. Healing powers are common in the animal world.

(CNN) — Scientists have created a mouse embryo that’s part human — 4% to be exact. The hybrid is what scientists call a human-animal chimera, a single organism that’s made up of two ...

Native to North America, the wolverine is a powerful animal that resembles a small bear but is actually the largest member of the weasel family. They are tenacious predators with a taste for meat.

She explains several facts about how the owl has evolved and the students take part in an experiment in getting the owl's attention by making mouse noises ... How have animal skeletons adapted?