Autumn Tolbert’s Reviews > Sing Like Fish: How Sound Rules Life Under Water > Status Update

So I am on Chapter 6. In chapter 5 we delved into the science of bat echolocation. I think she said bats can hear high frequencies?
I learned that many animals communicate and understand the world through autocommunication. Including marine animals.
I never knew that there’s 2 categories of whales baleen whales and odontocetes.
We also learned about the history of dolphins being used in the military.