strengthened to prevent silica in the grass from wearing them out... 能够防止草中的二氧化硅磨损牙齿 and huge bellies to process it all. 巨大的腹部 用于将草消化 Their young are born fully formed... 幼崽一出生就完全成型 ...able to walk within hours of birth... 出生后几小时就能行走 and fo...
Specialized teeth, 经过特别加强的牙齿 strengthened to prevent silica in the grass from wearing them out... 能够防止草中的二氧化硅磨损牙齿 and huge bellies to process it all. 巨大的腹部 用于将草消化 Their young are born fully formed... 幼崽一出生就完全成型 ...able to walk within hours ...
remain locked in an arms race with this green invader. 仍在与这绿色入侵者 继续展开军备竞赛 They have evolved a whole swathe of game-changing adaptations. 它们进化出了 一系列极为重要的适应性 Specialized teeth, 经过特别加强的牙齿 strengthened to prevent silica in the grass from wearin...
They have evolved a whole swathe of game-changing adaptations. 它们进化出了 一系列极为重要的适应性 Specialized teeth, 经过特别加强的牙齿 strengthened to prevent silica in the grass from wearing them out... 能够防止草中的二氧化硅磨损牙齿 and huge bellies to process it all. 巨大的腹部 用于...
and today's grazing mammals 今天的食草哺乳动物 remain locked in an arms race with this green invader. 仍在与这绿色入侵者 继续展开军备竞赛 They have evolved a whole swathe of game-changing adaptations. 它们进化出了 一系列极为重要的适应性 Specialized teeth, 经过特别加强的牙齿 strengthened ...
and soon went extinct. 很快灭绝 Twenty million years later, 2000万年之后 and today's grazing mammals 今天的食草哺乳动物 remain locked in an arms race with this green invader. 仍在与这绿色入侵者 继续展开军备竞赛 They have evolved a whole swathe of game-changing adaptatio...
Twenty million years later, 2000万年之后 and today's grazing mammals 今天的食草哺乳动物 remain locked in an arms race with this green invader. 仍在与这绿色入侵者 继续展开军备竞赛 They have evolved a whole swathe of game-changing adaptations. 它们进化出了 一系列极为重要的适应性 Speci...
But the endless plains were no paradise for the mammals. 但无尽的平原并不是哺乳动物的天堂 Many couldn't digest grass 许多无法消化草的动物 and soon went extinct. 很快灭绝 Twenty million years later, 2000万年之后 and today's grazing mammals 今天的食草哺乳动物 remain locked in ...
it would soon cover one-fifth of the land. 不久将覆盖五分之一的陆地 But the endless plains were no paradise for the mammals. 但无尽的平原并不是哺乳动物的天堂 Many couldn't digest grass 许多无法消化草的动物 and soon went extinct. 很快灭绝 Twenty million years later, 2000万年之后 and...
Many couldn't digest grass 许多无法消化草的动物 and soon went extinct. 很快灭绝 Twenty million years later, 2000万年之后 and today's grazing mammals 今天的食草哺乳动物 remain locked in an arms race with this green invader. 仍在与这绿色入侵者 继续展开军备竞赛 They have evolved...