Common dolphins in New Zealand are biologically older than their calendar ages. Trace metals and “forever chemicals” may be to blame.

A century of hints has suggested the famed red supergiant had a star pal but seeing it amid Betelgeuse’s brightness has been hard — until now.

Researchers scanned the ears of hundreds of marine mammals to deduce when pinnipeds evolved to hear well in both air and ...

Remains pulled from the La Brea Tar Pits revealed deformed vertebrae and rare tumors, possible signs of inbreeding among ...

A chat with aged avatars of future selves can guide people paralyzed by tough decisions. The question is what information to ...

The inferno that sent toxic smoke billowing toward the United States won't be the last. Officials are now battling both the ...

Prior moon rock samples, including from Apollo, seem heavily influenced by one impact. The farside samples tweak the story.

Killer whales might pulverize sunfish to break them into smaller bites for young orcas — or they might just find it ...

Scientists have identified four types of black holes, classified mostly by their masses. But these mysterious objects ...

The object orbits a brown dwarf that orbits a star, and astronomers aren’t sure if it’s a planet, a moon — or something else ...

Scientists documented humpback whales hunting together at the seafloor, coordinating their arrival to scoop up sand lances.

Humans could learn from chimpanzees and bonobos, who turn to group members for physical comfort during tense moments.