With blue blood and three hearts, the octopus has one of the most unusual circulatory systems in the animal kingdom.

The octopus is one of the world’s most amazing creatures, and nothing puts that into perspective more than the physiological differences between these fantastic sea-dwelling mollusks and the creatures ...

Research‍‌‍‍‌‍‌‍‍‌ biologically the octopuses are fascinating because in a way they are the most alien creatures among marine ...

CC0 Usage Conditions ApplyClick for more information. Did you know octopuses are highly intelligent animals with the ability to problem-solve complex puzzles – and even change color? They have three ...

Author Sy Montgomery poses with Cleo, a giant Pacific octopus at Oregon Coast Aquarium. Montgomery wrote the book "The Soul of an Octopus," which is Alliance's One Book One Community selection for ...

Friendship is an important part of life, and some animals also create bonds similar to how humans do. The best friendships are always those formed by two people so different from each other that it's ...

A dying octopus in a Southern California aquarium is receiving an outflowing of love and well wishes as she spends her final days pouring her last energy into caring for her eggs — even though they ...