To ....., the young cubs should be released into the wild when they are aged eight to ten months.

Many volunteers are participating in a campaign to ..... the rainforests.

The animals looked so weak because they were kept in .... for a long time.

Many species of animals are becoming ... because of habitat loss.

People continue to buy clothes made of wild animal skins. This will encourage poaching and illegal trade in body parts.

Sharks are not dangerous. People think they are dangerous.

We should try our best to conserve wildlife in the area. Otherwise, many wild animals may not survive.

The baby gibbon grew very quickly. We didn't expect that.