Caldwell was sent to Australia where, after extensive searching assisted by a team of 150 Aborigines, he managed to discover a few eggs | This was not confirmed until 1884 when W |
---|---|
Anthony Scott and Tom Grant 1997-11 | The Biology of the Monotremes |
The female Platypus, in common with echidnas, has rudimentary spur buds which do not develop dropping off before the end of their first year and lack functional crural glands.
Department of Primary Industries and Water, Tasmania | Inland, its distribution is not well known: it is extinct in barring an introduced population on and is no longer found in the main part of the , possibly due to the declining brought about by extensive land clearing and schemes |
---|---|
Venom is produced in the glands of the male, which are kidney-shaped connected by a thin-walled duct to a calcaneus spur on each hind limb | The Platypus is semi-aquatic, inhabiting small streams and rivers over an extensive range from the cold highlands of and the to the of coastal as far north as the base of the |
" That is, monotremes lay eggs, and the eggs are similar to those of reptiles in that only part of the egg divides as it develops.
7Sydney: University of New South Wales Press, 1995 | In fact, modern monotremes are the survivors of an early branching of the mammal tree; a later branching is thought to have led to the and placental groups |
---|---|
Information obtained from and anecdotal evidence indicates that the pain develops into a long-lasting that persists for days or even months | Electrolocation Monotremes are the only mammals known to have a sense of : they locate their prey in part by detecting electric fields generated by muscular contractions |
Ecology and behaviour The platypus is very difficult to spot even on the surface of a river.
10