Beachgoers have been urged not to touch the electric blue creatures by marine experts after hundred of the 'alien jellyfish' ...

The beaches around a popular English seaside destination are being overrun with vast numbers of moon jellyfish. Though generally harmless to humans, the sight is a warning sign of a more serious ...

The arrival of the 'blue tide' on beaches right across Anglesey and down the west Gwynedd coast has caught many beachgoers by ...

Striking images of bright “ red jellyfish ” appearing in the sky above storm clouds have sparked a wave of speculation online, with some social media users even floating theories about alien activity.

Most polychaete species spend their lives in burrows in the seabed. However, adult individuals of two species, Alitta succinea and Platynereis dumerilii, leave their burrows to spawn during warm ...