Orca Anatomy

Whales are a widely distributed and diverse group of fully aquatic placental marine mammals. The specimen is the postmortem brain of an adult male killer whale orcinus orca.

Killer Whale Orca Facts Worksheets Habitat Life Cycle

They are large marine mammals related to dolphins.

Orca anatomy. In large adult individuals this can reach an impressive height of 180 meters the largest of all existing dolphins. The brain was obtained shortly after death of natural causes and was immersionfixed in a large volume of 10 buffered formalin for an extended period of time. The dorsal fin acts like a keel and each dorsal fin is unique for each orca.

The peduncle is the large muscular area between the dorsal fin and the flukes. They are an informal grouping within the infraorder cetacea usually excluding dolphins and porpoises. Its dorsal fin is one of the most important parts of their anatomy.

Build take apart and build again. Male orcas have the largest dorsal fin of any marine mammal. Their closest living relatives are the hippopotamuses having diverged about 40 million years ago.

The anatomy model is made up of 16 detachable parts and is not put together when it first arrives at your door. The orcas circulatory system utilizes many arteries and veins in the flippers flukes and dorsal fin that allow it to transfer heat from the body in warm conditions or conserve heat it as it swims in icy seas. Reproductive cycle of the orcas.

Orcas have distinctive coloring of black backs and white chest sides. Whales dolphins and porpoises belong to the order cetartiodactyla which consists of even toed ungulates. The two parvorders of whales baleen whales and toothed whales are thought to have split apart ar.

Some assembly is required but there is an information booklet included that tells you how to assemble it. The tedco 4d vision orca anatomy model is an educational activity kit that explores the anatomy of an orca. Killer whales are a polygamous species and they may have multiple partners in a single season.

Build your own anatomy model of the orca. Such a feature may vary according to geographic location and gender but usually do not exceed that size. The orca is also known as the killer whale.

Males reach sexual maturity at around 13 years of age or 52 64 meters in length depending on the ecotype while females reach it between six and ten years or when they are 46 to 54 meters long. On females its a bit shorter and more curved. It can get up to 6 feet tall.

Its sheer size also helps conserve heat as its surface area to volume ratio is lower than other mammals. Warm blooded like humans they live in the ocean.

Orca Anatomy Model