Chordata (biology definition): a phylum of the animal kingdom comprising all the animals that have, at some stage in their life, a notochord (a hollow…
Protostomia, group of animals—including the arthropods (e.g., insects, crabs), mollusks (clams, snails), annelid worms, and some other groups—classified together largely on the basis of embryological…
Typically, the male bobs his head at the female and nips at her front legs and the front edges of her shell. This usually makes…
Recent estimates show us that there are nearly 6.5 million sea turtles left in the wild with very different numbers for each species, e.g. population…
Kingdom: Animalia Phylum: Chordata Class: Sauropsida Order: Testudines Linnaeus, 1758 What species is a sea turtle? Sea turtles (superfamily Chelonioidea), sometimes called marine turtles, are…
Some sea urchins are poisonous, but the most commonly consumed red, purple, and green varieties are harmless if you are careful when opening them. Are…
Mussels that do not open during cooking or that have chips or cracks on the shell may be dead. The meat of dead mussels deteriorates,…
The urchins were able to compensate internal pH in moderate (pH 7.8), but not at greater acidification (pH 7.6) (figure 3c). Coelomic fluid pH was…
Predators. Marine mussels are eaten by humans, starfish, seabirds, and by numerous species of predatory marine gastropods in the family Muricidae, such as the dog…
SEI. Science Education International (journal; International Council of Associations for Science Education) What does sei whale mean in english? Definition of sei whale : a…