Hindlimb

A hindlimb is a posterior limb on an animal,especially the quadrupeds.^[1] When referring to quadrupeds, the term hind leg is often instead used.

Location

It is located on the limb of an animal. Hindlimbs are present in a large number of quadrupeds. Though it is a posterior limb, it can cause lameness in some animals. The way of walking through hindlimbs are called bipedalism.

Benefits of Hindlimbs

Hindlimbs are helpful in many ways,some examples are:

Frogs

Frogs can easily adapt at the surroundings using hindlimbs.The main reason is it can jump high to easily escape to its predator and also to catch preys. It can perform some tricks using the hindlimbs.

Birds

All birds walk using hindlimbs. They have the ability to dig in two opposite directions using the hindlimbs.They can easily find food that makes them adapt on their surroundings. A bird with a forelimb that is the most primitive is the Archaeopteryx.It adapts by using it but not capable of long-distance flights,the reason why it was extinct now. The fastest biped is the ostrich. It runs at 70 km/h.

Kangaroo Rats

Bipedality in kangaroo rats are seen to be an agent of adaptation.It can survive in predators sn other agents against its survival. Kangaroo rats are long jumpers that can jump up to 18 feet, (that is twice the highest possible long jump and also high jump).

Using hindlimbs they can survive a challenging ecosystem. They can easily find food and survive hindrances in the environment. Some species use hindlimbs for competition.

Bolosaurids

Dinosaur group which are the family of the first biped, Eudibamus. It is now extinct but it is a fast runner during the Cretaceous Period. It didn't adapt to the ecological challenges because of the ruling of modern animals.

Harmful Effects of Hindlimbs

Horses

Horses that are born with hindlimbs have a greater chance of being permanently lame.

Sexual Interaction

It is a factor where hindlimb length is affected.

Rabbits

Rabbits are becoming lame in just 2 reasons:

Either:

• wrong carriage of human

Or

• its hindlimbs work improperly because of genetical reasons, which is rare.

See also

• Forelimb

References