1 The posterior pituitary lobe releases two hormones that are produced in the hypothalamus:  Oxytocin, which is responsible for stimulation of milk ejection (milk letdown) and for stimulation of uterine smooth muscle contraction at birth.
Crayfish and crawfish are crustaceans living in freshwater with a great resemblance of the lobsters. However, their size is smaller compared to the lobsters.
The Crayfish a very unique way of breathing. The gills of the crayfish are located on the outside of the body between the crayfish body wall and carapace.If you were to detach one of the crayfishes walking legs, you would observe that the crayfish's gill is attached to its walking leg.The crayfish's gills are attached to the walking legs, so as it walks, it can breath. A crayfish has a pocket where water is stored.f you were to detach one of the crayfishes walking legs, you would observe that the crayfish's gill is attached to its walking leg. The crayfish's gills are attached to the walking legs, so as it walks, it can breath. A crayfish has a pocket where water is stored.