What’s more fun than a kangaroo? A 10 foot tall, 500 pound kangaroo .Procoptodon Goliah was a marsupial just like its modern cousins, andhad similar features, but with a shorter face and slightly differentfeet. They were alive as recently as 18,000 years ago and their demiseis attributed to human activity。

　　袋鼠大家都喜欢，那你喜欢500磅的袋鼠吗？巨型短面袋鼠(Procoptodon)是一属生活在更新世澳洲的袋鼠。P.goliah是体型最大的袋鼠，站立时约有3米高，重232公斤。巨型短面袋鼠的面扁平，眼睛向前。每一隻脚上只有一隻脚趾，就像马蹄一样。牠在森林及平原行动快捷，主要吃草及树叶。牠的前肢肉垫亦很特别，有两个特长的手指，指上有大爪。牠们有可能用爪来抓树枝及採叶子来吃。巨型短面袋鼠约于5万年前灭绝，但有一些资料指牠们在1万8000年前仍然生存。牠们的灭绝成因肯定与人类活动有关，但直接成因则不清楚。巨型短面袋鼠是侧系群，从短鼻粗尾袋鼠属演化而来。

　　Macrauchenia lived around 20,000 years ago and were first discovered byCharles Darwin on his famous voyage on the Beagle. These creatures seemlike a grab bag of different animals, with a small trunk and a bodyreminiscent of a camel. Too large to be fast enough, and too small tofrighten off potential predators, they never had much of a chance。

　　长颈驼，又名滑距兽，是一种长颈的南美洲的有蹄动物，属于滑距骨目。牠有长的四肢，每肢上有三趾。最古老的化石可追溯至约7百万年前，而在约1万年前的更新世晚期便失去了化石纪录。长颈驼是后弓兽科中最着名的成员，只有在南美洲(主要是阿根廷)有发现其化石。原模标本是由查尔斯·达尔文(CharlesDarwin)在小猎犬号之旅中发现。长颈驼的外观就像没有驼峰及有一个短象鼻的骆驼，但牠们与骆驼或长鼻目没有亲密的关系。

　　Chalicotherium was a giant beast that walked on its back feet and knuckles, and used its long arms to pull down high branches forfeeding. They were most likely slow and spent a majority of their time consuming leaves. Their only protection was their size and heavy clawson their forelegs, both of which would deter modern predators, but were unexceptional at the time。

　　Chalicotherium源于古希腊语，小石兽之意。这种生长在中新世到更新世，身高近2米的巨大的动物用脚和手指行走，长长的臂膀可以把树枝扯下食用。至于手上的长趾是不是用于抵御外敌暂时没有证据证实。