Octopuses have more than one heart and they're not the only animal that does. Here's how many hearts squids and octopuses have and why they need them.

Octopuses are iconic for their eight arms. But how many hearts does an octopus have? It turns out that an octopus has three hearts, Kirt Onthank, an octopus biologist at Walla Walla University in ...

Many animals defy the single-heart norm, adapting to diverse environments with multiple hearts. Octopuses and squids utilize ...

Interesting Octopus Facts We all know that octopuses have eight arms, but did you know that they also have nine brains and three hearts as well?

An octopus mates only once in a lifetime, then dies. The female lives only until her 70,000 or so eggs hatch. The male dies even sooner -- about a month after mating.

Noninvasive research: Researchers deployed the camera on a remotely operated robot to film deep-sea octopuses in their ...