Most fish swim but some oddballs turn their fins into a makeshift suction cup to hang onto rocks. The rocksucker – a type of ...

According to the narrative, the overall victor or ‘alpha male’ then ruled the pack with an iron paw. Wolves became the poster ...

Meet the tiny predator that howls at the moon before striking a deadly attack – discover the deadliest mouse in the world.

These fierce-looking, torpedo-shaped fish can be found in warm and tropical waters all round the world. Each of the 20 or so ...

The animal kingdom is full of unique shapes and appendages – here's a closer look at trunks (and really long noses) ...

Sand piranhas keep beaches clean by feasting on dead and decaying matter and returning their nutrients to the ecosystem ...

Immortal jellyfish, and a few similar species, are said to be immortal. But how true is this claim? Dr Helen Scales explains.

A cape cobra possesses potent venom - a neurotoxin as lethal as that of the black mamba, causing death by respiratory ...

Stretching across a dramatic 12-kilometre landscape, this vibrant and densely populated community operates with the ...

Cassowaries are the only modern birds that have been recorded killing humans in combat in the wild. Cassowaries are large, ...

Alcatraz Island, a small, rocky outcrop about 1.5km offshore from San Francisco, is surrounded by chilly waters and fierce ...

Silk is a complex protein substance. It has an inner core of fibroin – a tough, flexible, long-chain polymer – and an outer, ...