Vocabulary about animal behaviors

We might see noisy geese flying in the form of the letter V as they _______________

We might see a group of fish swimming together in a sudden but perfectly________________movement

Most groups humans _______________have ___________.

Can we ___________that animals behave in the same way?

In the case of fish _____________in one group , there is no one leader.

The fish come to an agreement together through ________________

If they see a ____________predator ,they will quickly swim away to avoid it.

Any fish that ________to go alone might probably be the next lunch of a predator!

Scientists now __________that __________behavior in animals is highly efficient system