知识世界

Environment:The Tiger in the Pond

Several small creatures live in a pond. They hunt for survival. But people may be the only animals that would hunt，sometimes kill for fun. We must stop destroying things. All the creatures that live in the ponds have much the right living in this planet as we have. We should not poison them with rubbish. We should protect their living environment.

• 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