Unique Facts About Animals and Nature

The video presents a series of fascinating facts about the human body, the universe, animals, natural phenomena, and technology. It covers topics such as the composition of household dust, the number of bones in children and adults, the vastness of galaxies, animal vision, the speed of sound in different mediums, and the hardness of diamonds. Additionally, it discusses the frequency of lightning strikes, germ transfer, planetary size comparisons, the olfactory capabilities of dogs, fuel consumption in aviation, and the unique characteristics of starfish.

What is a surprising source of dust in our homes?

• Pollen

• Dead skin

• Pet hair

• Soil particles

Why do humans grow slightly taller in space?

• Lack of gravity

• Better nutrition

• Increased bone density

• More exercise

How many galaxies are estimated to exist in the universe?

• 10 million

• 100 billion

• 100 million

• 1 billion

Which animals can see behind themselves without moving their heads?

• Horses and cows

• Owls and eagles

• Rabbits and parrots

• Cats and dogs

How many lightning bolts strike the Earth every second?

• 100

• 10

• 200

• 50

What is unique about starfish compared to fish?

• They are related to fish

• They have brains

• They can swim

• They have no brains