Animals of the world, Clam

Animals of the world, Cartoon,imagination,writing,drawing,illustrations,The ant king and Heffanutt, The ant king and Heffanutt

skjell clam (640x461)

  • True clams, in the strict sense, are bivalves with equal shells closed by two adductor muscles, and with a powerful, muscular, foot that they use to burrow themselves in the mud
  • The word is often applied only to those that are edible, spending most of their lives partially buried in the sand of the ocean floor
  • Clams live in both salt water and fresh water.
  • Clam needs to open their valves if they move about, and also to allow their two feeding tubes (siphons) to reach out into the water. Bivalves feed by filter microscopic¬†algae¬†out of the water they live in.
  • Clams can be found in a variety of sizes ranging from 0.004 of an inch to almost 4 feet as seen in the giant clam
  • Some clams have life cycles of only one year, while at least one may be over 500 years old
  • Clams age can be calculated by counting rings on its shell. The growth-increments themselves provide a record of how the animal has varied in its growth-rate from year to year, and that varies according to climate, seawater temperature, and food supply.