#158 How could dinosaurs grow so big?
I learned this today. Dinosaurs were able to grow so big because they had hollow bones, could get more nutrition out of […]
Category: Animals
#149 Why do cats sleep for so long?
I learned this today. Cats sleep as much as they do to conserve energy. Something we should probably learn from. Not that […]
#139 What are the six great mass extinction events?
I learned this today. There have been six mass extinctions on Earth that experts know about. The Great Oxidation Event about 2.4 […]
#133 Is coral a plant or an animal?
I learned this today. Corals are animals because they don’t produce their own food. Corals are sometimes thought to be rocks and […]
#104 How do cats retract their claws and why can’t other animals?
I learned this today. Cats don’t so much retract their claws as lift them off the ground using tendons. Their claws are […]
#92 Why do bees make honey?
I learned this today. Bees make honey as a way to store food through the winter. Flowers cannot move, so they need […]
#81 Why do whales make sounds?
I learned this today. Whales make use of sound in the water because they cannot use their other senses. It is not […]
#79 Can dogs smell cancer?
I learned this today. Dogs can probably smell cancer in people. Dogs have a phenomenal sense of smell. They have 300 million […]
#77 How did dogs change when they were domesticated?
I learned this today. When dogs were domesticated, their temperaments changed, their skulls, teeth, and paws shrank, their ears flopped, they became […]
#72 How can whales hold their breath for so long?
I learned this today. Whales can hold their breath for so long because they can store oxygen in their blood and muscles. […]