CANBERRA, Aug. 17 (Xinhua) -- Australian scientist on Wednesday said his international research team has discovered the trick on how butterfly learn to change its wing pattern to avoid being eaten by birds. The Amazonian butterfly, Heliconius numata,...
Jennifer: Are you ready to go to the mall? Billy: Yeah. Dig my new pants? Jennifer: Copycat! Billy: What do you mean? Jennifer: You went out and bought khakis, too! Billy: No. Mine are a soft brown. Yours are khaki. Jennifer: Whatever. mall (n.) 即s...
Lucy had a cat. His name was Pirate. Pirate was 14 years old. Fourteen is old for a cat. What can I do? Lucy asked her dad. Pirate is old. He will die soon. I will miss him so much. Dad said, Why dont you clone him? They will make a brand new Pirate...