动物秘密Toads (蟾蜍) don’t have teeth. But frogs do. ……

Most frogs have teeth. Their small teeth are on the roofs5 of their mouths. So we can’t easily see them. ……

. They have long, strong legs and very short backbones (脊梁骨). Most frogs have teeth.Young frogs have....You can find frogs near the ponds and beside rivers.In the winter, frogs hide in mud under the water ……

. Their tiny bodies make it easy for them to hide (藏) among the leaves. Most frogs lay (下蛋) lots of eggs...亚新几内亚). They are the smallest frogs in the world. Their bodies are only 8.5mm to 9mm long. They’re as small ……

a tadpole (蝌蚪).Small frogs, or tadpoles, eat algae (海藻) and other green plants.They have gills (腮) like fish.... Adult frogs have gills, like tadpoles.Key: C A B ……

, small animals like earthworms (蚯蚓) and spiders. Most frogs have sticky tongues (舌头). *To catch an... and Africa. There're many kinds of squirrels but most have large tails. Long tails help them balance ……

_______.A. in waterB. on land4. Tongues help frogs get food. Do they have teeth?A. Yes.B. No.5. Frogs usually have big eyes. Their pupils _______.A. are always roundB. come in different shapes6. Which ……

for the frogs to hide.■Feed it insects or worms every day.■Don’t release them in the wild – it’s bad... again. Many small animals, such as the Betta fish (斗鱼), pet turtles and frogs, are also popular pets ……

frog carries the lizard across the twig. Fun factsTree frogs eat small insects like ants. Not all tree frogs live in trees. Some of them live in lakes and ponds.Lizards live in warm places of the world ……

. They have identified dozens of new species of frogs, butterflies and plants as well as large mammals...Oldest dinosaurSCIENTISTS have unearthed two fossilized dinosaurs believed to be the oldest ……

Frogs can’t swallow (吞咽) with their eyes open. ……

可爱的青蛙Do you have pets? I have three frogs. One is orange. One is yellow and the other is green. My frogs live in a big glass box. There is a rockwork (假山) in the box. They like swimming here ……

神奇的伪装术Many insects (昆虫) have enemies1, like frogs and birds. They usually change2 their colors or shapes to hide from enemies. People call it camouflage (伪装术). How do they do that? Let’s meet ……

神奇的伪装术Many insects (昆虫) have enemies1, like frogs and birds. They usually change2 their colors or shapes to hide from enemies. People call it camouflage (伪装术). How do they do that? Let’s meet ……

, the wood frog can be lively (有活力的) again in a few hours. Wood frogs are amazing animals. Let’s have...Wood frogs (木蛙) live in cold places in North America (北美洲). They freeze4 themselves to live in cold ……