awesome facts you never know about #part-2

1. Gecko feet have millions of tiny hairs that stick to surfaces with a special chemical bond and let them climb walls and hang on by just one toe.

1. The term "astronaut" comes from Greek words that mean "star" and "sailor."

1. The calcium in our bones and the iron in our blood come from ancient explosions of giant stars.

1. The Nile crocodile can hold its breath underwater for up to 2 hours while waiting for prey.

1. Jellyfish, or jellies as scientists call them, are not fish. They have no brain, no heart, and no bones.

#enjoy