There are 12 species of tropical mammals in the western hemisphere, of which Brazil has 1 1 species. This 1 1 species is divided into more than 6000 different varieties. Cats include jaguar, puma, jaguar, American cat and so on.

In addition, there are sloths, anteaters, tapirs, armadillos, dolphins, capybara (a large aquatic rodent weighing 66 kilograms) and more than 30 different kinds of monkeys. Brazil is the country with the most bird species in the world, with about 1 600 species, including many different kinds of parrots.

In addition, there are 40 species of turtles, lizards 120 species, snakes 320 species, alligators 5 species, amphibians 33/kloc-0 species, and freshwater fish 1500 species. In the catalogue of natural scientists, there are 654.38 million+invertebrates in Brazil, of which 70,000 are insects.

Brazil has the most bird species in the world. Tropical mammals, reptiles, invertebrates, amphibians and marine life resources are very rich.

Brazilian catfish:

Brazilian catfish is a kind of fish of the genus catfish. The maximum hair length can reach 35 cm, and the average body length is 20 cm. The head and mouth are a little short. Teeth are very small, and they are arranged in a narrow band on the lower jaw, upper jaw and plough bone. The occipital fossa is well developed, and the posterior temporal ridge is small or even absent. The preorbital bone has two spinous process points on the maxilla. The infraorbital spine has three spinous processes, and the first two are blunt.

There are five thorns in the muscles before the festival. There are long poisonous glands in the groove in front of spinous process of dorsal fin, ventral fin and gluteal fin. These thorns can pierce the victim's body and stand upright on the wound. All catfish have 1 1- 17 spines on the dorsal fin (12- 13 for catfish members), 2 spines on the ventral fin and 3 spines on the anal fin.

The body color is variegated red, orange or blue, and the lower side is lighter. There is a big black spot on the upper side behind the gill cover, and there are several black spots on the shallow axil of the pectoral fin. In addition, there are two dark bands on the tail. The Brazilian catfish is a master of camouflage. It can crawl slowly in front of its prey and ambush it.

Young fish appear mottled on a tan or light background. The caudate peduncle is slightly lighter than other parts of the body. In specimens with a standard length of more than 25mm, small brown spots are usually seen in the armpit of the chest.

Catfish in Brazil usually live in soft seabed and coral reef habitats, and the depth from the coastline to bays, ports and continental shelves is 100 meters. Brazilian catfish usually live alone except during courtship and spawning.

Brazilian catfish blend into the surrounding environment through camouflage and lie there waiting for unsuspecting prey to approach. Then, the Brazilian catfish quickly opened its mouth, created a vacuum, and immediately sucked its prey.