Cows form close friendships - but they may also hold grudges for years.
Lightning can make the air around it five times hotter than the sun’s surface!
You’re leaving natgeokids.com
to visit another website!
Ask a parent or guardian to check it out first and remember to stay safe online.
You're leaving our kids' pages to visit a page for grown-ups!
Be sure to check if your parent or guardian is okay with this first.