Despite a common narrative that male mammals tend to dwarf female ones, fewer than half of mammalian species display that pattern, a new study suggests. By Emily Anthes Female elephant seals are not ...

Huge die-offs of elephant seals occurred after the virus gained nearly 20 troublesome new mutations, scientists found. By Apoorva Mandavilli Elephant seals in South America died in massive numbers ...

As urban development continues to creep further into Earth's oldest and most diverse rainforests, a study reveals native and invasive small mammals aren't just adapting to their changing habitats -- ...