It turns out that preservation of these structures is widespread, confirming the ancient origin of this type of circulatory ...

Rachael is a writer and digital content producer at IFLScience with a Zoology degree from the University of Southampton, UK, and a nose for novelty animal stories.

Thousands of feet below the surface of the Indian Ocean, a reddish sea creature with “massive eyes” used its “long” arms to move through the water. Something approached the deep-sea animals, caught it ...