But some animals on Earth can live for hundreds or even thousands ... So, theoretically, hydras are "immortal" under ideal conditions. However, natural conditions are not always ideal, and hydras ...

These creatures, which have inhabited Earth’s oceans for millions ... So, The Oldest Living Animal Has To Be The ‘Immortal’ Jellyfish, Right? Despite the immortal jellyfish’s incredible ...

The earliest humans emerged about 300,000 years ago. While many of Earth’s earliest life forms have long since gone extinct, some animals have stood the test of time–surviving through mass ...

For example, jellyfish, including immortal ones, are prey to other animals, such as fish and turtles ... that ships are responsible for widely dispersing the creatures through Earth's oceans. The ...