老虎的英文介绍可以从老虎的形态特征写。

范文：

The tiger's body is majestic, strong and tall, and its hair color is beautiful. It changes from yellow to red from north to south, with dark stripes.?

The head is round, the kiss is wide, the eyes are big, the mouth is white, and there are black hard whiskers, up to about 15 cm.?

The neck is thick and short, almost the same width as the shoulder. The shoulder, chest, abdomen and hip are narrow and flat on the side.

The limbs are strong, the canine teeth and claws are extremely sharp, the mouth has a long and hard tiger beard, the background of the whole body is orange yellow, and the abdomen and the inner side of the limbs are white.?

There are double lines of black vertical lines on the back, about 10 black rings on the tail and a white area above the eyes, so it is called "hanging eye white forehead tiger".?

The black lines on the forehead are quite similar to the word "King" in Chinese characters, which is even more powerful. Therefore, it is known as "king of mountains" or "king of animals".

中文翻译：

虎的体态雄伟强壮高大，毛色绮丽，从北而南呈**到红色渐变，有深色条纹。头圆，吻宽，眼大，嘴边长着白色间有黑色的硬须，长达15厘米左右。颈部粗而短，几乎与肩部同宽，肩部、胸部、腹部和臀部均较窄，呈侧扁状。

四肢强健，犬齿和爪极为锋利，嘴上长有长而硬的虎须，全身底色橙黄，腹面及四肢内侧为白色。背面有双行的黑色纵纹，尾上约有10个黑环，眼上方有一个白色区，故有“吊睛白额虎”之称。前额的黑纹颇似汉字中的“王”字，更显得异常威武，因此被誉为“山中之王”或“兽中之王”。

苏门答腊虎（学名：Panthera tigris sumatrae）只生活在印度尼西亚的苏门答腊岛，颜色

深，接近红色，毛短，因此肌肉轮廓明显，非常壮观。目前苏门答腊虎大约还有400多只，

都生活在5个国家公园内

生物 Biology

动物界 Fauna

脊索动物门 Chordata

脊椎动物亚门 Vertebrata

四足超纲 Tetrapoda

哺乳动物纲 Mammalia Linnaeus,1758

兽亚纲 Theria

真兽下纲 Eutheria

食肉目 Carnivora

猫型总科 Aeluroidea

猫科 Felidae

豹亚科 Pantherinae

豹属 Panthera

虎 Panthera tigris

苏门答腊虎 Panthera tigris sumatrae

参考资料：

Wikipedia

奥里诺科鳄鱼Orinoco Crocodile

参考资料：

http://baike.baidu.com/view/154333.htm

斯比克斯鹦鹉Little Blue Macaw

参考资料：

http://baike.baidu.com/view/154331.htm