Sand piranhas keep beaches clean by feasting on dead and decaying matter and returning their nutrients to the ecosystem ...
A cape cobra possesses potent venom - a neurotoxin as lethal as that of the black mamba, causing death by respiratory ...
In Canada and the US this formidable predator has the alternative name of Timber Wolf due to its preferred habitat in ...
Immortal jellyfish, and a few similar species, are said to be immortal. But how true is this claim? Dr Helen Scales explains.
Cassowaries are the only modern birds that have been recorded killing humans in combat in the wild. Cassowaries are large, ...
Stretching across a dramatic 12-kilometre landscape, this vibrant and densely populated community operates with the ...
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, ...
Confusingly, it slightly depends on who you ask. Using the IUCN Red List as the source, and excluding domestic dogs, there ...
The barking owl is a striking-looking hunter found in Australia’s woodlands. Compact, powerful and yellow-eyed, it spends the ...
What are harpy eagles? Where do they live and just how big are they? Learn all about this iconic eagle in our expert guide ...
From a distance, their large fins might look like that of a shark slicing through the water but get closer and you can’t ...
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