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Here we're looking at the back of a skull of a child,
这是一个儿童头盖骨的枕骨面
probably about ten years old when he died,
这个孩子死时大概10岁
and there are two holes in these bones.
这块骨头上有两个洞
I was so surprised to
令我震惊的是
find that the spacing between those two holes
我发现这两个洞之间的距离
is matched almost exactly
几乎完全等于
by the spacing between the lower canines of a fossil leopard
美洲豹下颚化石上两颗犬齿间的距离
from the same part of the cave.
这块化石同样是在这个洞里被发现的
That tells us that this child was killed by a leopard.
这个发现说明 孩子是被美洲豹咬死的
But in more recent parts of the cave,
在洞里离我们年代更近的部分
he's found bones with the marks of stone tools on them -
他发现一些带有石器痕迹的遗骨
proof that our ancestors were eating meat.
证明了我们祖先有吃肉食
What that indicates to us
这块遗骨告诉我们
is that people were butchering the meat off this bone
人们曾把肉从骨头上剥离
and their stone knives went through that meat
他们的石刀穿过皮肉
and contacted this bone surface.
然后与骨头表面接触
We also have percussion damage on these bones
这块骨头上还存在碰撞产生的损伤
where people broke open the bones
人们曾砸开骨头
to get out the edible marrow from the inside of those bones.
以获取骨头里可以吃的骨髓
