. TUCHONGHumans are color blind compared to birds. Humans have three types of color cones (视锥) in their eyes... of a fourth cone, but also made a discovery. The fourth color cone allows hummingbirds to see combination ……

interesting facts (事实) you may not know!Why do octopuses have more than one heart?Why do octopuses have more than one heart?Octopuses (章鱼) have three hearts. Two of the hearts work only to move blood (血液 ……

(M) proves to be an exception. The light color of the eye is usually a result of a lack of melanin.... But the family of Shukur Mia (M) proves to be an exception. The light color of the eye is usually a result ……

信不信由你
The hearts of some hummingbirds (蜂鸟) beat (跳) 1,000 times a minute. ……

信不信由你
The hearts of some hummingbirds (蜂鸟) beat (跳) 1,000 times a minute. ……

信不信由你
Can birds fly backwards (向后)? Only hummingbirds (蜂鸟) can. ……

Can birds fly backwards? Only hummingbirds (蜂鸟) can. ……

Hummingbirds (蜂鸟) are the only birds in the world that can fly backward. ……

信不信由你Hummingbirds (蜂鸟) cannot walk. ……

世界上最小的鸟: 吸蜜蜂鸟Hi, everybody! We are bee hummingbirds(吸蜜蜂鸟). We are very very small.Look at my mouth... is as small as an egg.We are the smallest and lightest bird in the world.We live in Cuba (古巴 ……

of light that cannot be seen by the human eye. Ultra Violet happens to have the same symbolic...2018年最潮的颜色是什么?In 2018, purple will rule the fashion world.The Pantone Color Institute chose Ultra ……

super animals. They call them "super" because these animals have powers (能力) that even human beings don't have. Some of the super animals are huge, while some are small. Some you often see in your daily ……

绿为什么火了？它不仅仅代表时尚酸橙绿为什么火了？它不仅仅代表时尚A special and eye-catching color has become one of the most popular colors of summer 2024: brat green (酸橙绿).A special and eye-catching color has become one of the most popular ……

hummingbirds are small, they have strong bodies. Their wings (翅膀) are long and shaped like blades...Hummingbirds are the smallest birds in nature. TUCHONGHummingbirds are the smallest birds in nature ……

living birds. People often mistake them for bees.Although hummingbirds are small, they have strong... mistake them for bees.Although hummingbirds are small, they have strong bodies. Their wings (翅膀 ……