我急需一分介绍动物的资料，任何大自然的不是人们都了解的那种，谢谢

给你一篇瓶鼻海豚的资料：
GENERAL DESCRIPTION
The Atlantic bottlenose dolphins are small cetaceans that have a long, beaklike snout, a falcate (sickle-shaped) dorsal fin, and sharp teeth. They are Odontoceti (toothed whales) and have one blowhole. These dolphins live in small groups called pods.
SIZE
The bottlenose dolphin grows to be at most 12 feet (3.7 m) long, sometimes weighing more than 1,400 pounds (635 kg). Most are smaller than this.
SHAPE AND FINS
Bottlenose Dolphins have stream-lined bodies and a rounded head with a distinctive beak. They have a tall, falcate (sickle-shaped) dorsal fin and broad, slightly pointed flippers.
DIET AND TEETH
Bottlenose dolphins are hunters that fish mostly at the surface of the water, eating mostly fish and squid . They have many pairs of sharp, pointed teeth distributed in both the upper and lower jaws.
PREDATORS OF DOLPHINS
Some sharks (including tiger sharks, dusky sharks and bull sharks) and orca