This is Ardi - the oldest member of the human family tree we've found so far.

科学家昵称她为“阿蒂”，她是讫今被发现的人类族谱上最早期的成员。

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"This potentially allows us to find new twigs on the human family tree," he said.

“这能让我们找到人类基因树的新枝，”他说。

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But with all of this bustling progress, many questions about the human family tree remain.

尽管有这许多的进步，众多关于人类家族树的疑问依旧未解。

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Toumai (Sahelanthropus tchadensis) was thought to be right at the foot of the human family tree.

BBC: NEWS | Science/Nature | Evolution's human and chimp twist

Fossils from this ancient offshoot of the human family tree, called Australopithecus sediba, were discovered in 2008 at Malapa, near Johannesburg, South Africa.

WSJ: Creature Combined Human, Ape Traits

Scanning the teeth of A. sediba, and perhaps other enigmatic creatures such as the Indonesian "hobbit", could further resolve their relationship to other members of the human family tree.

BBC: Hi-tech scans reveal brain of human 'ancestor'