How do shark teeth work?

Cassie Malson-Dixon reports back from Pembrokeshire where it was only girls allowed on an all-female shark hunting expedition

Q What are some of the longest lifespans in fish? A Technically the longest lifespan lies with the Greenland shark, which live a staggering 250-plus years – perhaps even more than 500, in some cases.

With its baleful stare and lupine grin, the Death Metal anti-hero of the subaqueous scene enjoys a diabolical reputation

Why do we get hair on certain parts of our bodies, and can we get it back once it’s gone?

Phil Cavell prided himself on understanding how to thrive as a midlife cyclist, until he failed to spot the shark circling him – a heart condition hiding in plain sight

Amazing answers to your curious questions