- A.Because they like to set up their own communication systems.
- B.Because they want to take advantage of the other species.
- C.Because they tend to keep more food to themselves.
- D.Because they benefit from using the information from other species.
- A.they understood the dolphin?s instruction “Follow me”
- B.they had signals in common with one another
- C.they recognized some other animals not far away
- D.they shared those inter-species signals with the dolphin
- A.gestures
- B.whistles
- C.clicking
- D.postures
- A.The beached whales still felt distressful
- B.Moko 1ed the whales back to the sea
- C.The whales were still stuck on the beach
- D.Moko and the whales swam together ashore
- A.enough data on how animals speak human languages
- B.none of the data on animals? ability to communicate
- C.1ess data on how animals communicate between species
- D.some data on animals? tendency to talk to humans
- A.conflicting
- B.well-known
- C.debatable
- D.innovative
- A.easily attacked by
- B.skillfully adapted to
- C.comfortably inclined to
- D.closely involved in