What is carcinology?
Carcinology is the scientific study of crustaceans.
A crustacean is an arthropod with a hard shell, several pairs of jointed legs, and usually lives in water. Crabs, Lobsters, Crayfish, Water Fleas, Krill, Barnacles, Copepods, Prawns, and Shrimp are crustaceans.
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Is there a limit to how big animals can grow?
Joshua A. Krish poses this question in his article in Live Science (March 2023) and he says that there is a limit – animals can’t grow indefinitely.
The largest land animal is the African Elephant (Loxodonta africana) which is a mammal that reaches 250 centimetres (8 feet 4 inches) tall and 750 centimetres (25 feet) long, weighing about 6 metric tons (7 tons). It is not a meat-eating carnivore. It is an herbivore and eats grass, trees, bushes, fruit, and bark.
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Scientists have been studying penguins in the Antarctic Region.
Polar biologists have seen populations of penguins increase during years when there is not a lot of ice in the region. They have also seen breeding reductions during the years when there is a lot of sea ice. However, they did not know why ice-free conditions made populations increase. But after this recent study, the polar biologists think they know why.
Polar biologists at the Japanese National Institute of Polar Research put electronic global positioning system (GPS) tags on 175 Adelie Penguins (Pygoscelis adeliae) in the Antarctic Region. They also put video cameras in different locations to monitor what happens during the four seasons of the year when there are different sea ice conditions.
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