![](https://image.tmdb.org/t/p/original/61Wk5mPFPMdceKUT0BHQp8j6bKo.jpg)
![](https://image.tmdb.org/t/p/w342/eySrmDnjJIe1Z25BBcdLthakkKW.jpg)
Return to the Water
With perfect streamlined bodies and great underwater speed, seals, dolphins, porpoises and whales became the new hunters of the sea..
![](https://image.tmdb.org/t/p/w300/7FmQGtxLIWCrmLyZ4kYYycKscVx.jpg)
![](https://image.tmdb.org/t/p/w300/kWkzY8Y7nHUxx3o11lTagluQ4Uh.jpg)
![](https://image.tmdb.org/t/p/w300/lDif9Ce1HXazWoYk1xqYc1PqC1X.jpg)
![](https://image.tmdb.org/t/p/w300/fRLZpGBMTJ3t9lRecqIKdeBqj4p.jpg)
Other episodes for this season
![A Winning Design](https://image.tmdb.org/t/p/w300/t5QU6G2fWbMjcOC6DjXpD1upVQQ.jpg)
![Insect Hunters](https://image.tmdb.org/t/p/w300/zbGfwvi96qtajodi3qHP49zPnVO.jpg)
![Plant Predators](https://image.tmdb.org/t/p/w300/dQKQSGGlmi6WZcjXLugjiiFPwqE.jpg)
![Chisellers](https://image.tmdb.org/t/p/w300/iMJtX6dAZnSvGSb72GF7S3kQQH6.jpg)
![Meat Eaters](https://image.tmdb.org/t/p/w300/rq5mfRmlMuA6lE62h6pRGM8REta.jpg)
![Opportunists](https://image.tmdb.org/t/p/w300/urS8qGZilXDMgcg9dOcnTUgk1dZ.jpg)
![Return to the Water](https://image.tmdb.org/t/p/w300/61Wk5mPFPMdceKUT0BHQp8j6bKo.jpg)
![Life in the Trees](https://image.tmdb.org/t/p/w300/3c44m1l5S5i1bJNzVC4EHNRVwu9.jpg)
![Social Climbers](https://image.tmdb.org/t/p/w300/zYeUtHp5Df5jAwk7XXrmxL1p7QO.jpg)
![Food for Thought](https://image.tmdb.org/t/p/w300/eUgUZdJ1etMVxmvW95eFeGSJnVz.jpg)
With perfect streamlined bodies and great underwater speed, seals, dolphins, porpoises and whales became the new hunters of the sea..