1) Bats are the only mammals capable of sustained flight.

2) The world's oldest known living tree is a bristlecone pine named "Methuselah" in California, estimated to be over 4,800 years old.

3) In recent years, climate change has become a significant global concern, leading to increased efforts to reduce carbon emissions, promote renewable energy, and implement sustainability measures.

4) Kim Kardashian West is an American media personality, businesswoman, and socialite. She gained fame through reality television show "Keeping Up with the Kardashians" and has built a successful brand empire encompassing fashion, beauty, and other ventures.