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.
Crayfish are omnivorous and will eat a wide variety of foods, including plants, insects, frog eggs, small fish, dead plants and animals and worms. They commonly feed on submerged, decaying vegetation, deriving nutrients mainly from the bacteria and other decomposers associated with it. Common Name: â¦.