It was the size of a sheep, weighing probably up to 100 kg ( 220 lb ) . " Why do we also need one that says : " The largest monotreme ( egg-laying ) mammal ever was the extinct long-beaked echidna species " Zaglossus hacketti ", known from a couple of bones found in Western Australia.
12.
Although they are sometimes commonly referred to as giant echidnas, " Megalibgwilia " species are thought to have been similar in size to the contemporary western long-beaked echidna, but with slightly longer forearms . " Megalibgwilia " was probably an insect-eater, like the short-beaked echidna, rather than a worm-eater like members of " Zaglossus ".
13.
We already have a page that says " The largest extant monotreme is the Western Long-beaked Echidna weighing up to 16.5 kg ( 36.4 lb ) and measuring 1 m ( 3.3 ft ) long . [ 10 ] The largest monotreme ( egg-bearing mammal ) ever was the extinct echidna species " Zaglossus hacketti ", known only from a few bones found in Western Australia.
