Kangaroos thrive on tough grass using thick enamel instead of complex teeth, revealing an unexpected path in evolution.
New research led by Flinders University argues thick tooth enamel helped kangaroos chart an unconventional evolution story, ...
This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. NEW YORK (AP) — The second baby of a ...