知识世界

Environment:The Mermaids of Itamaraca

Christopher Columbus had seen mermaids on his return from the new world. But the animal of the origin of the legend is the manatee. They are not as beautiful as people usually say. In northeastern Brazil， on the Island of Itamaraca， a center has been established for the preservation and study of these sea mammals that are seriously threatened with extinction. Let's get to visit these mildly tempered creatures.

• 01

  Environment： The Infinite Voyage —— Crisis in the Atmosphere

  
• 02

  Environment： Thirsty Planet（1）

  
• 03

  Environment： Waves in the Ocean

  
• 04

  Environment： Ice Worlds: Life at the Edge

  
• 05

  Environment： Something in the Air

  
• 06

  Environment： Building Blocks

  
• 07

  Environment： The Pond - Community Ecology in Action

  
• 08

  Environment： The Endless Voyage — Survivors

  
• 09

  Environment： The Nature of Things——The Living City

  
• 10

  Environment： It's in the Water