🍿 Why are some animals black and white? ⏲️ 6 Minute English

Vocabulary optical illusion
- visual trick where your eyes and brain perceive something that is not really there, or see it differently from how it really is
 
 a whole bunch of (something) - 
a lot of (something)
 
 put off
- cause to dislike, lose interest or not do something
 
 giveaway
- something that makes it easy for people to discover something secret or unknown
something clicked in my mind
- used when you suddenly understand something
 
 black-and-white
- subject or situation where it is easy to understand what is right and wrong