双语：熊猫原本吃肉

Why being lazy could make you rich: A third of adults say their best money-making ideas come when they're lying in BED.Giant pandas famously lead relaxed lives. But now scientists have worked out why they never break into a sweat. Apparently the black-and-white beasts have underactive thyroid glands compared to other bears.

为什么懒惰能生财：1/3的成年人称自己最好的赚钱点子都是躺在床上时想出来的。大熊猫的生活轻松自在，这点人尽皆知。但是如今科学家已经揭示了大熊猫从不出一身大汗的原因。 大熊猫的体色为黑白两色，与其他的熊科动物相比，其甲状腺并不活跃。

The animals need to save energy as they get very little nutrition from their diet of bamboo and their thyroid glands is one of a series of features that slow them down. Even when moving around, a giant panda uses just half the amount of energy as a stationary human.

大熊猫靠吃竹子所获得的营养很少，所以需要保存体力，而且它们的甲状腺也是其行动缓慢的系列特征之一。 即使四处走动时，一只大熊猫消耗的能量也正好是人类安静状态下所耗费的一半。

Pandas spend many of their waking hours munching bamboo – but their digestive system originally evolved to digest meat like other bears - is poorly adapted to digest it. Scientists from The Chinese Academy of Sciences and Aberdeen University calculated that they get so little energy from the bamboo they spend all day eating that they need to conserve as much as they can.

大熊猫只要一醒着，基本就是在咀嚼竹子——但是它们的消化系统对此很难适应，因为大熊猫最初跟其他熊科动物一样是吃肉的。据中科院和英国阿伯丁大学的科学家们估计，大熊猫虽然一整天都在吃竹子，但是从中获得的能量实在太少，以至于它们要尽可能地保存体力。

The scientists studied the daily energy expenditure of pandas – five captive and three wild ones - and found it was just 38 per cent of that of a similar animal of the same body mass. Pandas expend around only slightly more energy than famously lazy three-toed sloths.

科学家们选取了5只圈养的熊猫和3只野生大熊猫，研究了大熊猫每日的能量消耗，研究发现，大熊猫与同样体重的同类动物相比，能耗只占其38%。三趾树懒很懒惰是出了名的，与其相比，大熊猫所消耗的能量也只多了一点点。