where there is a network of blood vessels close to the surface of the skin 那里的血管网比较贴近皮肤表层 and, as the saliva evaporates, their blood is cooled. 因此 当唾液蒸发时 血液也能得到冷却 This thermal image shows just how effective the process is. 这幅热影像能证明这种方法非常有效 ...
Any kangaroo out in the open is in serious danger of overheating. 任何一只呆在外面的袋鼠 都将面临中暑的威胁 In the full sun the temperature on the ground soars to 70 degrees. 待到阳光最毒辣之时 地面温度已升高至70℃ By midday the radiation is so intense they must take shelter. 到...
In the full sun the temperature on the ground soars to 70 degrees. 待到阳光最毒辣之时 地面温度已升高至70℃ By midday the radiation is so intense they must take shelter. 到了正午 太阳的炙焰 迫使它们不得不寻找庇荫处 In the shade they're shielded from much of the sun's ener...
By midday the radiation is so intense they must take shelter. 到了正午 太阳的炙焰 迫使它们不得不寻找庇荫处 In the shade they're shielded from much of the sun's energy 在树荫下 它们虽然避开了太阳的能量 but their body temperature can still rise. 但它们的体温仍在升高 So they lick s...
But this situation won't last long. 但是这种情况不会持续多久 Australia is the world's most arid continent with blistering daytime temperatures. 澳大利亚是世界上最干旱的大陆 整个白天酷热难当 Every hour the temperature rises by five degrees centigrade. 每过一小时 气温就将升高5℃ ...
Australia is the world's most arid continent with blistering daytime temperatures. 澳大利亚是世界上最干旱的大陆 整个白天酷热难当 Every hour the temperature rises by five degrees centigrade. 每过一小时 气温就将升高5℃ Soon the heat will reach a critical point. 热度很快就会达到临界...
Every hour the temperature rises by five degrees centigrade. 每过一小时 气温就将升高5℃ Soon the heat will reach a critical point. 热度很快就会达到临界点 Any kangaroo out in the open is in serious danger of overheating. 任何一只呆在外面的袋鼠 都将面临中暑的威胁 In the full sun the t...
Soon the heat will reach a critical point. 热度很快就会达到临界点 Any kangaroo out in the open is in serious danger of overheating. 任何一只呆在外面的袋鼠 都将面临中暑的威胁 In the full sun the temperature on the ground soars to 70 degrees. 待到阳光最毒辣之时 地面温度已升高至70℃ By midda...
This sun potentially is a killer. 在这里 太阳将会成为杀手 And the red kangaroos must acknowledge that. 红大袋鼠必须意识到这一点 Right now, while the sun is low, 此时 太阳还未升起 there's no immediate cause for concern. 并没有直接危及到生命 But this situation won't last lon...
And the red kangaroos must acknowledge that. 红大袋鼠必须意识到这一点 Right now, while the sun is low, 此时 太阳还未升起 there's no immediate cause for concern. 并没有直接危及到生命 But this situation won't last long. 但是这种情况不会持续多久 Australia is the world's mo...