国家地理:Picky Frog Mom 挑剔的青蛙妈妈

（单词翻译）

Here in the South American rainforest, you're watching what should be a joyous¹ event, the laying of hundreds of eggs by a mother frog. In truth, only a very few of these eggs will blossom into full frogdom. Drought will take a toll², and predators³ will menace these babies at every step of their development. Some clever moms lay their eggs in trees, foiling the predators below. Take a look at some super close-up micro-camera footage of a frog taking the journey from egg to tadpole⁴. Here captured on film is the miracle of life. When the tadpoles⁵ outgrow⁶ the birth chamber⁷, they have to find another source of water fast. Of course, mom took care of everything. She laid her eggs above a jungle pool. Suddenly they are no longer big tadpoles in a self-contained micro-pond. Now they are tiny tadpoles in a huge body of water where their bodies and legs develop quickly. Predators lurk⁸ everywhere, like this water bug⁹ for instance. It's a simple deadly transaction. It shoots its venom¹⁰ in, then sucks the life out. The survivors¹¹ like this one will soon lose their tadpole tails and be able to scramble¹² up on land, but they will continue to live in the water where they first high dived into the world and began their astonishing adventure.