Females have their own concerns. 雌性恐龙要顾好自己的事。 They must prepare to bring a new generation into the world... 它们准备将新的生命带到这世界， a new generation that needs to be a little bit better than the last. 新一...
Earning the right to reproduce means earning the right to impact the future of your species. 获得了繁殖的权利就代表获得了影响本物种未来的权利。 I suspect this whole dance had pretty much been choreographed through their lives...
It's all about getting your genes in the next generation. 你只想把自己的基因传给下一代。 Evolution tends to favor types of displays between members of the same species that are not necessarily lethal, 进化常常偏爱相同物种中成...
For egg-laying animals, it's almost always in the late spring or summer. 对卵生动物来说，一般都会在晚春或是夏季进行繁殖。 That way, the eggs can be incubating during the summer, during the warmest part of the year, 那样的话，...
Late spring, in the Cretaceous Period. Adolescence is a critical time. 白垩纪，暮春时节。青春期是一个关键时期。 Dinosaurs are preparing to mate. Some will succeed. Others will fail. 恐龙们正在为交配做准备。有的会成功...
Dinosaurs...the most sophisticated, best-engineered, highly adapted survival machines ever created by nature. 恐龙，大自然创造出来的最复杂的，设计最完美的，具有高适应性的生存机器。 These guys were very successful. 那...
Living as a hunter was not easy. 作为一个猎手并不容易。 The irony for many predators is they're very concerned about injuring themselves. 对许多捕食者来说最讽刺的是怕在捕猎时伤到自己。 Even the toughest, most well-ar...
For protection, Deinonychus relies primarily on its brain. 出于自我保护，恐爪龙主要依靠其大脑。 The brains structure of Deinonychus is really quite remarkable. 恐爪龙的大脑结构真的非常复杂。 Relatively speaking, Deino...
The mighty carnivores ruled a dangerous world of Cretaceous Period. 强大的食肉动物统治着白垩纪的凶险世界。 But being a super predator like Tyrannosaurus Rex is not easy. 即使作为顶级捕食者的雷克斯霸王龙也不轻松。...
Quetzalcoatlus lives by its own rules. 风神翼龙有着自己的生存准则。 Most meat eaters keep their distance from the hatchlings of an apex predator, but not this reptile. 大多数肉食动物都会远离顶级捕食者的幼崽，风神翼龙...
