A pod of killer whales, Orcinus orca, in the North Pacific. (U.S. National Oceanic Atmospheric Administration) (CN) — One day last summer, two observational vessels encountered a gruesome scene off ...

Whales are among the largest animals on Earth, yet they rarely get cancer. This seems counterintuitive given their massive size and long lifespan. More cells should mean more chances for mutations ...

The asteroid that struck the Earth 66 million years ago changed far more than life on land. Ocean ecosystems also collapsed in the aftermath of the strike, and, like the non-avian dinosaurs on land, ...

Matt J. Thorstensen does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...