Today, nearly 400 animals are listed as threatened or endangered animals in the United States. Many are at risk of becoming extinct or disappearing permanently. Unless efforts to save these vulnerable(易受攻击的) animals succeed, many of the country's greatest creatures will be lost forever. From the facts listed, guess which animals are endangered. Click on the picture to find out more about each of these animals in trouble.
American Crocodile
●American crocodiles are about 12 feet long. They live on land and in shallow water, swamps and marshes.
●American crocodiles like to float in the water with only their eyes and noses above the water surface.
●American crocodiles eat mostly small animals, which they grab with their strong jaws and sharp teeth.
●American crocodiles lay eggs. They hide their eggs under twigs and leaves, or bury them in the sand.
●Some crocodiles help their young hatch, and then carry them to the water in their mouth.
Habitat
Southern Florida, Mexico, Central and South American, Caribbean islands.
Why It's Endangered
Overhunted for its skin and habitat destruction.
Peninsular Bighorn Sheep
●Bighorn sheep can weigh as much as 280 pounds and stand about 3 feet tall.
●They live in dry, desert mountain ranges, near rocky cliffs.
●Bighorn sheep eat grass, twigs and leaves.
●Male sheep are called rams and can be recognized by their huge, brown horns. The horns curl back over the ears, down，and up past the cheeks.
●They live in herds or groups. The male sheep with the biggest horns are usually in charge. Male horns can weigh as much as 30 pounds.
●Males will use their massive horns to fight. The fights can last as long as 24 hours.
●Females are called ewes. They are smaller than rams and have shorter, smaller horns.
Habitat
Nevada and California to west Texas and south into Mexico.
Why It's Endangered
Loss of habitat, hunting illegally, drought and disease.
Where can the article be found according to the passage?

A．Newspaper.	B．Website.
C．Student book.	D．Magazine.

Which of the following is NOT true according to the description about American crocodiles?

A．American crocodiles live on land and in swamps and marshes.

B．American crocodiles hide their eggs under leaves, or bury them in the sand.

C．American crocodiles grab small animals with their strong jaws and sharp teeth.

D．American crocodiles like to float with their eyes and nose below the water surface.

Where can we find both American crocodiles and Bighorn sheep according to the passage?

A．Southern Florida.	B．California.
C．Mexico.	D．West Texas.

Rams make use of their massive horns to ________.

A．master the herds	B．show their beauty
C．fight with others	D．hunt for food

What can be the best title?

A．Animals in Danger

B．American Crocodile

C．Peninsular Bighorn Sheep

D．How to Save Animals in Danger