Scientists managed to confirm pregnancies in three giant mantas with underwater ultrasound scans, offering clues to the animals’ elusive reproductive habits.

Marine biologists in Mexico captured video of a strange maneuver that killer whales used to shred their meal.

In the foothills of the Ecuadorean Amazon, a 101-year-old farmer and a young scientist turned an amateur collection into a scientific survey of one of the most diverse snake habitats on Earth.