Other penguins that have limited diets are more threatened by changes coming from a warming ocean and the makeup of the food chain. But king penguins — which are so abundant they are considered a ...

Some animals have reproductive strategies so extreme that they can lead directly to their own death. In certain species, ...

A national movement called #ExecuteAWA believes the country has reached a tipping point and compassion alone is no longer ...

As humpback whales recover, older males are fathering more calves, revealing how whaling still shapes mating and competition ...

The Amazon rainforest is often associated with jaguars, parrots, and towering trees. Yet the majority of animal life in this ...

The kick-off signal for puberty begins in the brain. Specifically, in the hypothalamus, where specific neurons release a hormone that activates the hypophysis, at the base of the skull, which then ...

Nobody has ever known where tiger sharks go to mate. But new data suggests there’s one Hawaiian spot that draws a big ...

A new study shows that as humpback whale populations recover from past whaling, older males are gaining a major advantage in reproduction. Early in the recovery, breeding groups were dominated by ...

Amazon mollies don't need a man, and never will. A new study finds they can purge and repair genetic mutations that would otherwise plague a self-cloning species.

In Lake Malawi, hundreds of species of cichlid fish have evolved with astonishing speed, offering scientists a rare opportunity to study how biodiversity arises.

Scientists have long focused on rising temperatures to understand how climate change is reshaping the natural world. But ...

Project Hail Mary by Andy Weir is one of today's best science fiction books. While much of the science and math is great, it falls a bit when it comes to evolution.