One of these gene machines, a social and bipedal ape, began to imitate.

这些“基因机器”其中的一个，一个群居的两足人猿开始了模仿。

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Suggestions that they were the direct descendants of theropod dinosaurs (a group of bipedal meat-eaters that include Allosaurus, Velociraptor and Tyrannosaurus) caused quite a flap.

有人说它是兽脚恐龙的后代（兽脚恐龙是一群食肉的两足恐龙，其中包括异龙、迅猛龙与暴龙），这引起了学界很大的注意。

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This is a robotic walking machine, bipedal, about 4 meters tall.

这是一个行走机器人，双足，高约4米。

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The control programs have been used to create control systems for a bipedal robot and a visual recognition system for a robot that works even when the machine is distracted by flashing lights and shadows.

BBC: Robot brains become more human

The legs support your body when you crouch and give little tugs on your feet when you walk, making bipedal mobility less of a strain.

ENGADGET: Honda introduces new walking assist machine, doubles as bionic wedgie maker

She also compared the structure and pattern of the fibres with those of modern animals and found that the species they most resembled was the emu also a bird and also, like T. rex, bipedal.

ECONOMIST: Some 68m-year-old evidence that birds are dinosaurs