With its gaping mouth, needle-sharp teeth, and slightly startled expression, the black sea devil anglerfish seems tailor-made for the spotlight.
And in fact, one particular female got her close-up on November 17 when researchers got footage of this rare anglerfish—the first time this species has been filmed alive and in its natural habitat—off of central California
Confocal image of a squid embryo. All nuclei are stained with DAPI (blue). Phalloidin staining reveals neural structures (red), while cilia on the surface of the embryo are highlighted by acetylated tubulin staining (green).
"Cool" is finding out that dolphins are among the handful of species on Earth that can recognize themselves in the mirror. "Cooler" is finding out that dolphins "name" themselves from a young age with a signature whistle used to signal their identity to other dolphins.
Squid, it seems, may be among the most vulnerable, with consequences that could trickle through the marine ecosystem. A new study published May 31 in the journal PLOS ONE finds that squid raised in more highly acidified ocean water hatch more slowly and are smaller when they hatch than squid raised in ocean water at today's pH levels. The acid-exposed squid also have abnormal statoliths, which are internal, calcified structures that function like the mammalian inner ear to help squid keep their balance and orient themselves.
A clever fish has figured out that if it produces sounds in an oyster shell, the noises will carry over long distances, according to new research.
The study, published in The Journal of Experimental Biology, is just the latest to show that fish are far from being silent. Many can produce sounds by vibrating their swimbladders and, like a fishy form of Morse Code, they can create different meanings based on the sounds.