Yes, hydra are definitely alive.
Hydra are small, freshwater invertebrates native to temperate and tropical regions. Biologists find them particularly fascinating due to their remarkable regenerative abilities. A key feature that sets them apart is their apparent lack of senescence – they don't seem to die of old age or even age at all, constantly renewing themselves. This characteristic highlights that they are very much alive, actively maintaining biological processes.
Their continuous regenerative properties, meaning they do not appear to die of old age, indicates active life processes.
