But there is, Dr Lockley and Dr Lucas realised, something missing from the picture.

但洛克里与卢卡斯博士明白，图上遗漏了一些东西。

And, when Dr Lockley and Dr Lucas re-examined the tracks they found that that was exactly what was going on.

而且，当洛克里与卢卡斯博士对这些线索进行重新检查时，他们发现那正是曾经所发生的。

Next, in the U.K., where we're happy to be online at Lockley Heath Middle School. That's in England, United Kingdom.

接下来是英国, 我们很高兴看到你们，英格兰的洛克希思网上中学的同学们。

Lockley taught at the University of Colorado, in Denver, before his retirement.

洛克利退休前在丹佛的科罗拉多大学任教。

That's strong evidence that this creature was bipedal — walking on only its hind legs, Lockley says.

洛克利说，这是证明这种生物是双足动物的有力证据——只用后腿行走。

Instead, Lockley says, footprints in the Haman formation might be from another two-legged member of the crocodile family.

相反，洛克利说，哈曼地层中的脚印可能来自鳄鱼家族的另一个双足成员。

But now, most researchers — including Lockley's team — believe pterosaurs needed all four feet to walk on the ground.

但是现在，大多数研究人员——包括洛克利的团队——认为翼龙需要四只脚才能在地面上行走。

The Carolina Butcher didn't leave any known footprints, Lockley says, and footprints are the best evidence for how an animal walked.

卡罗莱纳屠夫没有留下任何已知的脚印， 洛克利说，而脚印是动物如何行走的最好证据。