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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.
Paralithodes platypus, the blue king crab, [2] is a species of king crab from cold waters in the North Pacific Ocean and adjacent seas. [3] They are generally smaller than red king crabs . [ 4 ]
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]
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.
The gray whale (Eschrichtius robustus) migrates off the coast of California. Order: Cetacea Family: Eschrichtiidae. One species of gray whale occurs in California's waters. Gray whale, Eschrichtius robustus (migrant) Order: Cetacea Family: Balaenopteridae. Six species of rorquals occur in California's waters. Minke whale, Balaenoptera acutorostrata
Along the coast of California is the California sea lion, which can grow up to seven feet long and can be found in shallow ocean water, near beaches, and among rocks. In the open ocean is the northern elephant seal, which grows up to a massive 14 feet (4.3 metres) and has a population of just over 150,000. [3]
Population growth remained strong in the Central Valley and the Inland Empire, but the majority of California counties saw declines in 2021.