- 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.

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

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

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

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

#enjoy
awesome facts you never know about #part-2