How reptiles protect themselves, and how animals protect themselves

1.Get a first look at some of the ways animals protect themselves, and know that there are many ways for animals to protect themselves.

2.There is an interest in further exploring the mysteries of the animal world.

Event preparation. 1.Story animation courseware, video.

2.** and information on how animals protect themselves.

Activity process (1) The topic is introduced by the multi-** courseware "The Tiger is Coming" to stimulate children's interest in activities.

One day, the weather was very good, the little fox invited the little frog, the little white rabbit, the little hedgehog, and the sika deer to play a game on the grass together.

Then enjoy: the little rabbit immediately lay on the ground and pretended to be dead, the little hedgehog shrank into a big thorn, the little frog jumped into the grass, the sika deer quickly ran away, and the little fox let out a big stinky fart.

Summary: It turns out that small animals have the instinct to protect themselves from being hurt when they encounter danger, and they will find ways to protect themselves.

2) Children's ** video, understand some ways for animals to protect themselves, and know that there are various ways for animals to protect themselves.

With a task**:

3) Sort out and summarize the methods for animals to protect themselves.

Protective color: frogs, camels, butterflies, zebras, polar bears, grasshoppers and other insects.

Mimics: dead leaf butterflies, praying mantises, stick insects, etc.

Armor: Turtles, snails, pangolins, snails, mussels, and other animals with hard shells or horny scales.

Hard thorns: porcupines, hedgehogs, sea urchins.

Escape: deer, zebras, antelopes, rabbits, etc.

Self-cutting: geckos, crabs, starfish.

Dirty: Sea cucumber.

Stink: beetles, fart bugs, weasels, foxes, skunks, etc.

Inkjet: octopus, squid.

Play dead: possums, rabbits, caterpillars, beetles, foxes, etc.

Summary: Small animals are really smart, and they have thought of many ways to protect themselves, because of the special structure of their bodies, so they have different ways to protect themselves, and some ......, some ......, and some ......There are also small animals that have several ways to protect themselves, so that they can better protect themselves, they are really capable little animals.

4) Problem-based thinking and expanding thinking.

Summary: When you encounter bad people, you should be calm, use some ways to call for help, and use your ingenuity to protect yourself.

Summary: We should love small animals, protect animals, and let people live in harmony with animals.

5) Extension of summary activities: The operation cards are classified according to the methods of animal protection to further consolidate knowledge and experience.

For example, cats, when falling from a high place, when they are in the air, they will face down on all fours, and if they land in this position, they will hurt themselves; For example, snakes, cobras will flatten their heads when they encounter danger, which is the posture that is often seen, in addition to attacking, that posture is actually self-protection; For example, a small beetle, a lot of small beetles, if you touch him with your hand, he will play dead; Geckos, for example, will shed their tails when in danger.

Molluscs have a common trait and that is that their bodies are all soft. Among them, mussels and snails are very slow to move and are easily attacked by predators, and in the process of long-term evolution, they have formed shells that protect their soft bodies. River mussels have two petal-shaped shells, and snails have a spiral-shaped shell.

If you dissect them separately and look at them, you will see that their soft bodies are also covered by a fleshy membrane called the mantle. The mantle also plays a protective role. Shells are formed from substances secreted by the mantle.

The head of the squid has two large, well-developed eyes. Below the head, the trunk is covered with a capsule-like mantle. Squid move quickly and can flee quickly when attacked by predators.

In addition, the squid has an ink sac in its body, which contains thick black ink, which can quickly spew out when encountering enemies, staining the surrounding sea water black and covering its escape.

The zebra is a herbivore endemic to Africa and looks like a horse, but the biggest difference from ordinary horses is that it has a beautiful flower dress, with a black and white strip on it, black and white, as if it is a beautiful pattern drawn artificially. Kinesiologists tell us that these patterns are actually theirs"ID card"。Because different zebras have different markings on their bodies, some are thick and sparse, and some are fine and dense.

Members of the zebra family use markings as a marker to identify their own kind.

Black and white have different procedures for absorbing and reflecting light, so the contours of a zebra's body can be disrupted, blurring its shape and making it difficult to distinguish. Therefore, the stripes on the zebra are a protective color to adapt to the outside world.

Everyone knows about the Dead Leaf Butterfly! So how does it protect itself? Let's listen to the explanation!

When the dead leaf butterfly is in danger, it will immediately fly to the tree and pretend to be a dead leaf. Why is that? Because, the dead leaf butterfly looks like a dead leaf, with leaf vein-like wings.

Moreover, its spots resemble fungal spots on dead leaves. Therefore, it is very difficult for the enemy to spot the Dead Leaf Butterfly.

Self-protection of polar bears.

What kind of bear lives in the Arctic Ocean? That's right, it's a polar bear. Guess what, how does it defend itself when it encounters enemies? If you don't know, just listen to it!

Polar bears live in the snow-covered Arctic Ocean and have a white body color. So, when it encounters an enemy, it will mix with the surrounding snow and ice, and it will be difficult to spot its clues.

Experience: The animals in the animal world are amazing! Invent their own ways to protect themselves more effectively!

Conclusion: The animal world is amazing! But there are still many mysteries waiting to be explored!