The main species of jellyfish you're likely to encounter on Welsh beaches are: the lion's mane, compass, barrel or root mouth ...

Fascinating though they may be, nearly all jellyfish have the capacity ... cannonball jellyfish are considered one of the most important jellyfish species. Producing in abundance in the waters ...

Nobody wants to experience a jellyfish sting. Luckily, if you stay alert and know what to look for, you can significantly ...

There are some 3,600 species of hydrozoans. These are typically smaller than scyphozoan jellyfish. The polyp stage of their lives is usually more conspicuous than the small adult jellies. However, not ...

Members of the species can reverse the aging process so that instead of expiring, they reconstitute themselves as juveniles. The juvenile then starts the jellyfish’s life cycle all over again.