Pandas reproduce through mating in a procedure that is similar to other mammals; the mating season occurs between March and May, when the female has a two- or three-day period of estrus. At that time, the male mounts the female panda, copulating for a period of time between 30 seconds and five minutes. Gestation then lasts between 95 and 160 days.Know More
If the mother gives birth to twins, generally only one survives in the wild. The mother selects the stronger cub and leaves the weaker one to die. Because mothers store no fat, they do not have the ability to produce sufficient milk for two cubs, and the father does not participate in raising the cub.
While pandas are black and white as adults, cubs are born pink, unable to see and having no teeth. Their average birth weight ranges between 3 and 4 ounces. Over the next two weeks, the cub's skin turns gray at those points on the body where it grows black fur. Giant panda cubs stay with their mothers for the first 18 to 24 months of life.
Pandas in captivity have a difficult time completing the mating process, as the environment seems to remove their desire to mate. Some researchers have attempted to give males Viagra and show them movies of pandas mating to increase their motivation.Learn More
Living things respond to their environment by adapting to it. Organisms react to different things in their environment, such as light.Full Answer >
Charles Darwin is best known for developing the theory of evolution by natural selection. Darwin formulated his theories after returning from a voyage around the world on the HMS Beagle and he published them in 1859.Full Answer >
Molluscs are all non-segmented invertebrates with a body cavity containing organs, along with a head region and a foot region. They usually possess a muscular mantle covering their bodies, which usually secretes a shell. They are an incredibly diverse group with over 50,000 known species, containing everything from the simple sessile filter-feeders, such as the mussel, to the predatory octopus, thought to be the most intelligent of all invertebrates.Full Answer >
According to PAWS, animals live on every continent and in every ocean on Earth. Each region has distinct native wildlife species that are adapted to the local environment. Animals live in many areas that are completely inhospitable to humans, including the deep sea and natural boiling water springs. Many of these species are too tiny to be seen with the naked eye.Full Answer >