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Over 81 million people live permanently at high altitudes (>2,500 m or 8,200 ft) [52] in North, Central and South America, East Africa, and Asia, and have flourished for millennia in the exceptionally high mountains, without any apparent complications. [53] For average human populations, a brief stay at these places can risk mountain sickness. [54]
They can be found in elevations from sea level to 5,000 m (16,000 ft). They prefer warmer, tropical climates but are adaptable and can live in all but the most extreme environments. Lizards also exploit a number of habitats; most primarily live on the ground, but others may live in rocks, on trees, underground and even in water.
As many as 47 individual plants can live on 1 square metre (10.8 sq ft), and they can grow at 60 centimetres (24 in) a day. Kelp that is broken off its anchor provides a valuable food source for many animals, as well as providing a method of oceanic dispersal for animals such as invertebrates to travel across the Southern Ocean by riding ...
Recent figures indicate that there are more than 1.4 billion insects for each human on the planet, [27] or roughly 10 19 (10 quintillion) individual living insects on the earth at any given time. [28] An article in The New York Times claimed that the world holds 300 pounds of insects for every pound of humans. [28]
To date, at least 40,000 plant species, [50] 2,200 fishes, [51] 1,294 birds, 427 mammals, 428 amphibians, and 378 reptiles have been scientifically classified in the region. [52] One in five of all bird species are found in the Amazon rainforest, and one in five of the fish species live in Amazonian rivers and streams.
In the United States, around 2.3 million households are home to reptiles, including turtles. Here's what the reptile can and cannot eat.
Most reptiles are also cold-blooded, so they’re unable to regulate their own body temperature. ... plants and small animals. With a lifespan of 20 years or more, you’ll have a friend for ...
Of dicotyledonous plants, the commonest family is the Asteraceae (daisy family), followed by the Caryophyllaceae (carnation family). [2] There are around 560 species of bryophyte (mosses and liverworts), 550 species of lichen and 1,200 species of fungi, with both lichen and fungi being similar to those found in Scandinavia. [2]