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The platypus has an average body temperature of about 32 °C (90 °F), lower than the 37 °C (99 °F) typical of placental mammals. [33] Research suggests this has been a gradual adaptation to harsh environmental conditions among the few marginal surviving monotreme species, rather than a general characteristic of past monotremes.
Population density is defined as the population divided by land area. Data are from the US Census unless otherwise specified. Population data are for the year 2023 [2] and area data are for the year 2010. [3] Some population estimates for territories are from the United Nations Commission on Population and Development. [4]
Population density (people per square kilometre) by country in 2023 Population density (people per square kilometre) map of the world in 1994. In relation to the equator it is seen that the vast majority of human population lives in the Northern Hemisphere, where 67% of Earth's land area is.
The forests of Northern California are home to many animals, for instance the American black bear.There are between 25,000 and 35,000 black bears in the state. [6]The forests in northern parts of California have an abundant fauna, which includes for instance the black-tailed deer, black bear, gray fox, North American cougar, bobcat, and Roosevelt elk.
Its population is trending downwards due to loss of habitat from climate change and land clearing. Like many other species, platypuses need healthy freshwater systems to thrive. Watch the Video
Researchers saw the white platypus 10 times between February 2021 and July 2023, the study said.
California ground squirrel (Spermophilus beecheyi) Order: Rodentia Family: Sciuridae. Thirty species of squirrels, chipmunks, and marmots occur in California. Subfamily Sciurinae (tree squirrels and flying squirrels) Humboldt's flying squirrel, Glaucomys oregonensis. San Bernardino flying squirrel, G. o. californicus (CDFW special concern; endemic)
Maps: See how large the California wildfires are. Nigel Chiwaya. January 16, 2025 at 9:54 AM. ... have exploded in size. As of Thursday afternoon, 25 people had been killed and more than 12,000 ...