1, ants and aphids

Ants are especially willing to make friends with aphids, because ants like sweets, and aphids can provide ants with a sweet honey dew. It turns out that aphids feed on plants all their lives, so their feces are also sweet. When ants want to eat honey dew, they touch the tail of aphids with their tentacles, and aphids will secrete honey dew for ants to enjoy.

Sometimes, when the wind and rain knock the aphids to the ground, the ants will take pains to hold the aphids and send them to the young leaves when they find them. In winter, ants will take aphids to their nests for protection, and then send them to trees in the next spring.

2. Anemones and Clownfish

Anemone lives between corals and rocks in shallow waters, and its tentacles are covered with stinging cells to defend against enemies and prey, making it difficult for many marine animals to get close. Anemones are often hungry because they move slowly, while clown fish are often killed because of their bright colors. So clown fish and anemone have reached a tacit understanding in life.

Usually, clown fish will wander around anemones, attracting some small fish to get close to anemones' tentacles and become anemones' food; When clownfish are in danger, they will immediately hide under the umbrella of anemones.

3. rhinoceros and rhinoceros birds

When a rhino loses his temper, even an elephant should stay away. This rude guy also has his own "bosom friend", that is rhinoceros bird. Although the skin of rhinoceros is hard and thick, it is tender and thin between the folds. Some ectoparasites and mosquitoes use it to stab their mouthparts and suck the blood of rhinoceros, which makes it itchy and painful.

Rhinoceros birds are experts in catching insects. They landed on the backs of rhinos in droves and kept pecking at pests who tried to suck their blood. The rhinoceros is very comfortable all over, so it is natural to welcome these flying friends.

In addition to helping rhinoceros repel insects, rhinoceros birds have made special contributions to rhinoceros. Although rhinoceros has a keen sense of smell and hearing, its vision is poor and it is short-sighted. If the enemy attacks against the wind, it will be difficult to be found. At this time, its loyal friend rhinoceros bird will fly up and down and bark to remind it. When the rhinoceros is aware of the danger, it will take preventive measures in time.

4. Crocodiles and toothpick birds

There is a crocodile in the Nile River in Egypt, and its close relationship with the toothpick bird is even more thrilling-every time after a full meal, the crocodile will lie lazily on the beach and open its mouth. At this time, an amazing scene happened: the toothpick bird jumped into the crocodile's mouth lightly and pecked the food residue between the crocodile's teeth with its long beak.

When the toothpick bird "brushes its teeth" for one crocodile, it will fly to the mouth of another crocodile and continue to "brush its teeth". In this way, the crocodile's mouth was cleaned, and the toothpick bird filled its stomach. Crocodiles are fierce and cruel by nature. They often attack people and animals, but they never hurt toothpick birds.

When the toothpick bird "brushes its teeth" in the crocodile's mouth for a long time, the sleepy crocodile will unconsciously close its mouth. At this time, the toothpick bird will open its mouth as long as it pecks in the crocodile's mouth with its long pointed beak.

5. Cow starlings and African buffaloes

If you find African buffalo in African National Park, you will see several birds hanging on it. You may think these birds are annoying to buffalo, but buffalo is actually grateful to them. This kind of bird, called the cow starling, will eat mosquitoes from buffalo, help them clean up their bodies and resist diseases spread by pests.