The cnidocytes—or stinging cells—that are characteristic of sea anemones, hydrae, corals and jellyfish, and make us careful of our feet while wading in the ocean, are also an excellent model for understanding the emergence ...
The deep-sea crown jelly Atolla is one of the most common residents of the ocean's midnight zone. Its bell has a signature scarlet color and bears one tentacle much longer than the rest. So 15 years ago, when MBARI researchers ...
Gorgonians are an order of soft corals that belong to the large group of Cnidaria, which also includes hard corals, sea anemones, jellyfish and many other species. Gorgonians colonize the seabed all over the world, from shallow ...
A new paper in Genome Biology and Evolution maps out for the first time how Hydra, which are a group of small aquatic animals, can regenerate their own heads by changing the way that their genes are regulated, known as epigenetics.
Body axes are molecular coordinate systems along which regulatory genes are activated. These genes then activate the development of anatomical structures in correct locations in the embryo. Thus, the body ensures that we ...
In the animal kingdom, specific growth factors control body axis development. These signaling molecules are produced by a small group of cells at one end of the embryo to be distributed in a graded fashion toward the opposite ...
Researchers have perfected the recipe for keeping sea anemone and coral cells alive in a petri dish for up to 12 days. The new study, led by scientists at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric ...
To sting or not to sting? For jellyfish, that is the question whenever their tentacles brush up against anything, including millions of human swimmers around the world.
Researchers based in Brazil and the United States have completed the first-ever mapping exercise to profile the toxins produced by tube-dwelling anemones, or cerianthids, a family of marine animals belonging to the same phylum ...
They contain no carbohydrates. No fats. No proteins. Not much else but water. Still, the moon jellies (Aurelia aurita) are eaten by predators in the sea; fish, crustaceans, sea anemones and even corals and turtles.
