It's hard enough attracting a suitable mate. But if you're a reef squid, that's not the end of the battle—there's also the small matter of keeping rival males at bay. Vint Cerf of Google on the ...

Sarah McAnulty is Philly's squid whisperer. Why it matters: If you've seen her guerilla art — hundreds if not thousands of rainbow-colored Caribbean reef squids stickers she's slapped on light p ...

Marine worms attracted to an underwater light form a living veil. A squadron of Caribbean reef squid (Sepioteuthis sepioidea), known for their voracious appetites and ability to communicate by ...

In its heyday, the reef was also home to a bizarre menagerie of other marine life. Large tentacled cephalopods, ancestors of the squid and nautilus, scarfed up trilobites. Crinoids, delicate ...

Turtles gather algae to clean their shells, giant squid rapidly change color and divers witness the yearly spawning of a coral reef in the Gulf of Mexico.