Smuggling and endangered species

Interesting article to read:  

Indian stuffed toy tigers used to scare elephants

To begin with, what does 'smuggling' mean? What are the typical items that are smuggled? Give examples.

Article to read:

Thailand bids to combat species smuggling

Listening exercise to do:

Animal species 'extinction crisis'

Other articles to read related to the issue:

• Animal smuggling in Bangkok

• Wildlife smuggling

• 

  6 Bizarre Animal Smuggling Busts