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The giraffe only sleeps 2 hours a day in about 5–15 minute sessions. Koalas are the longest sleeping-mammals, about 20–22 hours a day. However, killer whales and some other dolphins do not sleep during the first month of life. [67] Instead, young dolphins and whales frequently take rests by pressing their body next to their mother's while ...
Desert kangaroo rats are denizens of desert areas with sandy soil; vegetation is typically sparse and consists of creosote bush, a variety of grasses, and cacti. [8] Desert kangaroo rats live in burrow systems under slight mounds of soil 6-9m across; [8] they sleep in a den, which is sealed off at extreme temperatures, during the day. [4]
Rats commonly groom each other and sleep together. [51] Rats are said to establish an order of hierarchy, so one rat will be dominant over another one. [52] Groups of rats tend to "play fight", which can involve any combination of jumping, chasing, tumbling, and "boxing".
Kangaroo rats also live in colonies that range from six to several hundred dens. [10] The burrow of a kangaroo rat is important in providing protection from the harsh desert environment. To maintain a constant temperature and relative humidity in their burrows, kangaroo rats plug the entrances with soil during the day. [4]
Image credits: an1malpulse #5. Animal campaigners are calling for a ban on the public sale of fireworks after a baby red panda was thought to have died from stress related to the noise.
During the summer, males have home ranges of about 6.5 ha (16 acres), and females of about 2.5 ha (6.2 acres). [4] However, these contract dramatically in the late fall and winter, when little fresh food is available, and they rely instead on their caches to survive. At such times, home ranges may shrink to as little as 0.65 ha (1.6 acres). [10]
Winter brings less daylight and colder temperatures, which can disrupt sleep. Seasonal Affective Disorder (SAD) is more common in winter due to the lack of sunlight, causing sleep disturbances.
Try to go to bed and wake up at the same time each day, even on weekends Try to exercise every day (but not close to bedtime) Get natural sunlight for at least 30 minutes day