单词:top predator
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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Breaking a mirror means seven years bad luck. So does spilling salt or meeting a black cat. Weve all heard such silly-sounding superstitions. Of course w
Idiom: Made in the shade ( very comfortable ) Hit the book: Predator Conserve Habitat Proximity
Westlife - She's Back Shane Took some time to heal To get my heartbeat back Just when I'm ahead Returning from the dead She's back again... Aha She knows just what to say She always gets her way Just when I was free She's back inside of me She's back
Asian Carp now outnumber native fish in many areas of the United States and their expansion particularly threatens the fragile ecosystems of the Great Lakes. In an effort to control algae growth, catfish farmers in the southern United States introduc