1 . It may sound a bit “Dr. Doolittle,” but it turns out kangaroos can communicate with humans. Researchers found that kangaroos communicated with humans “on purpose”--a behavior that was thought to only belong to domesticated(驯养的)animals, like dogs, horses or goats.
Experts from London's University of Roehampton and the University of Sydney set up a task. This task was known as “the unsolvable problem task”・ During the task, they presented kangaroos with food trapped inside a plastic container.
After trying, and failing, to open the boxes, the kangaroos turned their gaze(注视)on a nearby human - and sometimes even pushed or scratched(抓) them to ask for help, researchers said.
“Their gaze was pretty powerful, co-author Alexandra Green said. "We've previously thought only domesticated animals try to ask for help with a problem. But kangaroos do it too. If they can't open the box, they look at the human and back to the container. Some of them use their nose to push the human and some get close to the human and start scratching at him asking for assistance.,,
Based on these new findings, the team believe kangaroos - considered social animals, like dogs and goats --may be able to change their behavior to interact with humans.
“Through this study, we are able to see that communication between animals can be learnt and that the behaviour of gazing at humans to get food is not related to domestication lead author Alan McElligott said.
“Indeed, kangaroos showed a very similar pattern of behaviour we have seen in dogs, horses and even goats when put to the same test,“ McElligott added.
1. What have the researchers found about kangaroos?| A．Kangaroos can become domestic animals. |
| B．Kangaroos can communicate with humans. |
| C．Kangaroos can learn from domestic animals. |
| D．Kangaroos have the same habits as domestic animals. |
| A．Removed. | B．Hidden. | C．Kept. | D．Saved. |
| A．Observations. | B．Previous data. |
| C．Making comparison. | D．Making a survey. |
| A．Travel. | B．Education. | C．Technology. | D．Science. |
