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Size varies considerably in different regions, with average weight from 0.7 to 2.4 kg (1 lb 9 oz to 5 lb 5 oz); males have average length 50 cm (20 in), while females are the smaller at 43 cm (17 in). [21]
The list of organisms by chromosome count describes ploidy or numbers of chromosomes in the cells of various plants, animals, protists, and other living organisms.This number, along with the visual appearance of the chromosome, is known as the karyotype, [1] [2] [3] and can be found by looking at the chromosomes through a microscope.
This is a list of extant species in the Felidae family, which aims to evaluate their size, ... Shoulder height (cm) Native range by continent(s) Range map 1 Tiger:
A platypus bill has three different types of receptor cells that allow the mammal to detect movement, and also the electric fields produced by the small creatures it hunts.
The platypus has an average body temperature of about 31 °C (88 °F) rather than the averages of 35 °C (95 °F) for marsupials and 37 °C (99 °F) for placentals. [ 30 ] [ 31 ] Research suggests this has been a gradual adaptation to the harsh, marginal environmental niches in which the few extant monotreme species have managed to survive ...
Platypus numbers may have more than halved over several decades, research models show, but figures are hard to pinpoint. Environment groups estimate the total population between 30,000 and 300,000.
The brain and central nervous system have been extensively studied for evolutionary comparison with placental mammals, particularly with its fellow monotreme, the platypus. [67] [68] The average brain volume is 25 ml (0.88 imp fl oz; 0.85 US fl oz), similar to a cat of approximately the same size; [69] while the platypus has a largely smooth ...
Zacco platypus have 7 dorsal fin rays and it is located near the midline between its snout tip and caudal peduncle end. [ 9 ] [ 10 ] Each spine of the first dorsal fin is slightly extended, and the first spine of the male fish is extended similarly like a thread; the edge of the second dorsal fin is straight, and the rays are all branched out ...