Biology

Predators’ electricity gives caterpillars an early warning

New research harnessed the highly absorbent dye tartrazine, used as the common food coloring Yellow No. 5, to turn tissues in living mice clear—temporarily revealing organs and vessels inside the animals

Not all cats are hydrophobic

The octopus sex chromosome appears to have been maintained over hundreds of millions of years, making it the most ancient of such chromosomes in animals

Dolphin ecologist Tadamichi Morisaka discusses common dolphin behaviors that could explain instances of the animals biting people in Japan

Scientists re-create the last moments of a manateelike animal that was eaten by both a crocodilian and a shark

A curator at the New York Botanical Garden explains what we can learn about the past and the present from houseplant trends.

Queen guitarist Brian May has spent a decade studying the science of bovine tuberculosis, which can be carried by badgers, and has identified a new method of spread

A new study suggests that waves of aging-related changes occur at two distinct points in our life

A bioluminescent petunia led me to a world of radiant mushrooms, 19th-century experiments and a modern rivalry between scientists in Russia and the Americas

Replacing research animals with tools that better mimic human biology could improve medicine

New fossils and analytical tools provide unprecedented insights into dinosaur sensory perception