Sex-changing animals

Peek over the parapet of a bridge just as daylight bleeds into dusk, gazing down through the clear layers of a shallow river or chalk stream, and you may glimpse the shadowy, serpentine form of an eel

What the scientists are saying… Turning skin ...

Are men from Mars and women from Venus? No, it’s much stranger than that…

For a quarter of a century, the National Lobster Hatchery in Padstow has been leading the way in crustacean conservation. Oliver Berry heads west to observe its mission in close-up

IN MARINE FISHKEEPING, fish are the undeniable show-stealers. When folks think “reef tank”, what comes to mind are graceful yellow tangs, wiggly ‘Nemos’, and psychedelic mandarins. Not a lot of people

From top-dog wolves and wise elder elephants to insect royalty and sex-changing fish, animal alphas take many fascinating forms