Known as the Hydra, these creatures are small invertebrates with soft bodies that resemble jellyfish, native to temperate and ...

Hydra are a group of invertebrates that look like tiny tubes with tentacles protruding off one end. They grow only about 0.4 inches (10 millimeters) long and eat even tinier aquatic animals.

Mapping how the ‘immortal’ hydra regrows cells may demystify regeneration. The tiny invertebrates can regrow their bodies from just a bit of tissue ...

The tiny hydra, a freshwater invertebrate related to jellyfish and corals, has an amazing ability to renew its cells and regenerate damaged tissue. Cut a hydra in half, and it will regenerate its ...

The hydra is a tiny freshwater invertebrate, which is related to jellyfish and corals. Measuring a few millimeters long, these little critters kind of resemble a soft stick with tentacles on one end.

We can only dream of being forever young. But for hydra, tiny freshwater creatures, this is a reality. They don't age and can technically live forever — unless they starve or are killed.

Hydra are small, jellyfish-like invertebrates with a remarkable approach to aging. They are largely made up of stem cells that constantly divide to make new cells, as their older cells are discarded.

Thanks to new research, scientists are closer to understanding how “immortal” aquatic animals called hydra regrow their lost heads. Hydra are inch-long freshwater creatures that resemble a ...

The fresh-water polyp Hydra, a member of the over 600-million-year-old phylum Cnidaria, ... (DV) axis, which in vertebrates separates the front of the body from the back, and the left-right ...

Invertebrates lack conventional antibody-based immunity but have the capacity to distinguish between symbionts and pathogens. In this Review, Nyholm and Graf describe how the innate immune system ...