Taxonomy term

mammal

La Brea climate adaptation as different as cats and dogs

The La Brea tar pits are famous for being a predator trap. For every herbivore, a dozen or more carnivores are pulled from the prolific Pleistocene fossil site in downtown Los Angeles. Two new studies focusing on the two most common species found at the tar pits — dire wolves and saber-toothed cats — are characterizing how the tar pits’ two top predators coped with the warming climate toward the end of the last ice age, and the results are surprisingly dissimilar: While the wolves got smaller, the cats got bigger.

12 Aug 2014

Blogging on EARTH: Ancient whale with a big bite named for Moby Dick author

In a Peruvian desert, scientists discovered the fossils of an extinct whale with a big bite. The whale's teeth and jaws were so powerful that it feasted on other whales.

30 Jun 2010

Deciphering mass extinctions

What the planet’s past mass extinctions tell us about the future of life on Earth

The crash-landing of a 10-kilometer-wide asteroid 65 million years ago made for a very bad day for dinosaurs — or one very lucky day for mammals.

02 Sep 2009

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