An ancient reptile with a 9-foot wingspan was soaring over the sea in what is now North Texas some 95 million years ago when – plop – it fell into the water and died.
VIDEO: Don't miss this amazing look at the secret mating rituals of spiders that can see in the dark.
The colorful and aggressive mantis shrimp evolved a new way to use a naturally occurring, biological sunscreen: The animals use this compound to filter light from their eyes.
A bizarre fossil from China's Chengjiang Lagerstätte site hints at early diversity in a group of Cambrian marine arthropods called radiodonts.
A new study reveals that octopuses frequently communicate with each other in challenging displays that include posturing and changing color.
Octopuses are highly intelligent, and thanks to their amazing, neuron-filled tentacles, they can do humanlike tasks such as unscrewing jars and lids.
A real-life "Octomom" off the coast of California has been declared a champion of parenting in the animal world. Scientists watched as she shielded her eggs for a record 4.5 years.
Thanks to their keen night vision, cuttlefish can camouflage themselves against nocturnal predators in the briny deep.
While most female squid and octopuses have just one reproductive cycle before they die, vampire squid go through dozens of egg-making cycles in their lifetimes, a study found.
Antarctic octopuses survive subzero temperatures because of the blue pigments in their blood, a new study finds.