Two subspecies of mice live in a desert ecosystem. Subspecies 1 is large, dark tan, and has longer legs than Subspecies 2. Subspecies 2 is small, light tan, and has shorter legs than subspecies 1

i'd say that the moon rock is about 2.2 billion years old.

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.

enhanced global partnerships and exploration capabilities may advance international preparedness for protecting the earth from catastrophic events such as some asteroid strikes, advancing collaborative research on space weather and protecting spacecraft by developing new means for space debris removal.