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

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.

The life cycle of most jellyfish species is similar. Museum curator Miranda Lowe explains ... Immortal jellyfish are thought to have originated in the Mediterranean Sea, however they are now found in ...

where a few species of jellyfish thrive, polyps can form dense colonies on submerged rocks and other surfaces. These tiny jellyfish polyps are resilient and capable of withstanding all sorts of ...

The String of Pearls Jellyfish (Apolemia uvaria), which is also known as string jellyfish or barbed wire jellyfish, has ...

One species stands out for its extraordinary ... Essentially, when faced with stress, injury or old age, the immortal jellyfish can transform all of its existing cells into a younger state.