原始人

Hominids are a group of primates that include humans and their closest evolutionary ancestors.
人科是包括人类及其最近的进化祖先的一类灵长类动物。
Our fossil record reveals a rich diversity of hominids over millions of years.
我们的化石记录显示了数百万年里丰富多样的人科动物。
Australopithecus afarensis, a well-known hominid species, is famous for the discovery of Lucy.
非洲南方古猿（如露西）是一个著名的人科物种。
Homo habilis, one of the earliest known hominids, developed simple stone tools around 2.6 million years ago.
最早为人所知的人科成员之一，能人，在约260万年前开始制造简单的石器。
The Great Rift Valley provided a crucial environment for the emergence of various hominid populations.
大裂谷为不同人科种群的出现提供了关键的生态环境。
Comparative studies of hominid skeletons have contributed greatly to our understanding of human evolution.
对人科骨骼的比较研究极大地促进了我们对人类进化的理解。
Homo erectus, an archaic hominid, was capable of controlled fire use around 1.8 million years ago.
直立人，一种原始的人科动物，大约在180万年前能控制用火。
Fossil evidence suggests that some hominids had bipedal locomotion before Homo habilis.
化石证据表明，在能人之前，有些人科动物已经具有直立行走的能力。
The transition from ape-like to human-like behavior was a gradual process among hominids.
从类猿行为向人类行为的转变是人科动物的一个渐进过程。
Modern humans, classified as Homo sapiens, are the only surviving members of the hominid family.
当今人类，被归类为智人（Homo sapiens），是现存的人科家族的唯一成员。