The bee hummingbird of Cuba is the smallest bird in the world. It measures only 57 mm, from its beak to tail and weighs only 1.6 gm.
A cactus without arms in Arizona (USA) has reached a record-breaking height of 24m, as tall as 7-s+orey building. The giant saguaro cactus can reach a height of 15m.
There are around 30,000 species of spiders in the world, and all are predators. Its bite releases a powerful poison from its special glands and the poison paralyses its prey. The spiders then suck the blood and soft parts of the prey.
Barosaurus, a type of dinosaur, had such a long neck that some scientists believed it needed 8 hearts to pump blood to its brain.
The golden eagle can soar for hours on its huge wings, searching for prey such as rabbits and other birds. An eagle can spot a rabbit or a prey about 1.5 km away.
Pythons have extreme eating habits. They can eat a fully grown pig in one gulp and then fast for months.
Surprisingly, snails can sleep for 3 to 4 years continuously. The ants never sleep.
Bamboo is a grass, but no a tree. It grows at a speed of 3 ft a day. Giant bamboo in south-east Asia grows 1 m in 24 hours.
Scientists predicted that the only living creature that would survive nuclear war is the scorpion. Because it has an extraordinary capability of withstanding 200 times the radiation that would kill a human.
The giant spider crab is the largest crustacean in the world. Its claw span is nearly 3.7m long.
