Tag: sleeping time

Captive breeding is the process of maintaining plants or animals in controlled environments, such as wildlife reserves, zoos, botanic gardens, and other conservation facilities. It is sometimes employed to help species that are being threatened by human activities. The activities which pose threat include habitat loss, fragmentation, over-hunting or fishing, pollution, predation, disease, and parasitism. The objective of many captive populations is to hold similar levels of genetic diversity to what is found in wild populations.

A) IUCN stands for the International Union for Conservation of Nature and Natural Resources.

In a reciprocal cross, a male expressing the trait of interest will be crossed with a female not expressing the trait or vice versa. The method can be used for the protection of white lions from getting extinct as some white lions will be produced in the progeny. There are fewer than 12 White Lions in the wilds of their endemic habitat. The need for conserving white lions is extreme now.

There are two kinds of organisms; regulators and conformers. Regulators are those who can maintain their internal body temperature according to the external environment. Example: dog, cat, sloth etc.

Aestivation is the summer sleep and hibernation is the winter sleep. They are taken so as to avoid the harsh temperature. It is a dormant phase where the metabolic rate is lowered. For example, Polar bears hibernate and crocodiles aestivate.

Sloth has a very low metabolic rate, it sleeps a lot. It sleeps around 15-18 hours a day. A sloth can lower its heart beat rate. After garden snail, sloth is the slowest animal.

• Cows usually sleep around 3-4 hours a day. But it doesn't happen in a single go, but instead for shorter periods of time. 
• A cow takes frequent naps throughout the day and especially the night, which typically last between one and five minutes at a time.
  
  

• A lizard generally sleeps around 60-80 seconds but its longest sleep can be 4 hours.
  
• A horse can sleep up to 3 hours a day.
  
• A python being the longest sleeping animal can sleep around 2 weeks continuously.
  

A folivore is an organism that is a specialized herbivore and eat leaves. Sloth is an animal that feeds on leave buds and tender shoot. Due to the low metabolic rate, they don't have to eat much. So, they only eat leaves to survive.