Laboratório de Tecnologia Educacional BIBLIOTECA DIGITAL               DE CIÊNCIAS

Uma imagem que representa os 4 maiores riscos para o oceano atualmente.

Um infográfico ilustrativo que demostra os 3 maiores riscos à vida marinha.

Physical appearance: 36 cm. The legs are short and yellow. The body is predominantly grey, darker in the back. The top of the head is black. The immature is striated and brownish. Distribution: American Continent, Africa, Asia, Australia and islands in the Pacific. Habitat: Rivers, lakes and mangroves of different sizes. Diet: Aquatic insects, mollusks, amphibians, reptiles and fish. Reproduction: The nest is a platform on the top of tall trees. Lays three eggs. Natural history: Solitary and migratory. There are saw-like structures inside the beak to help holding slippery food. May be eaten by carnivorous fish such as the trahiras (Hoplias sp.) when walking on flooded land....

33 cm. The tail is very long. It is all black. The bill is thick and strong. The skin is also black. Male and female are similar. Distribution: From Florida (U.S.A) to Argentina. Habitat: Inhabits open landscapes with grass. Prefers moist places. Diet: Consumes arthropods, mainly grasshoppers, and small vertebrates as lizards, mice and frogs. Also eats hatchlings. Fishes in shallow water. In some seasons, mostly in the dry ones when arthropods are scarce it eats fruits and seeds. Follows cattle and tractors in order to catch insects displaced by their movements. Reproduction: The male dances around the female on the ground. It offers food as a gift for the female but sometimes sw...

60cm Identification: there are four mostly white species of egrets in Brazil, the snowy egret can be told apart by its smaller size and also for having the tip of the beak black and for having dark legs with yellow feet. Laypeople usually think this species is a young great egret, however it is technically different enough to be place in another genus. It is bit more demanding than the great egret regarding its habitat necessities, as it does not occur in polluted waters and is more strongly associated to aquatic plants such as the water lily. Its reduced size allows this bird to walk over the aquatic plants without sinking. It feeds mainly on small fishes and tadpoles. The nest is ...

23 cm. Very similar to the great kiskadee (Pitangus sulphuratus), but with a larger and broader beak. Distribution: From Mexico to Argentina. Habitat: In the canopy of woods, secondary forests and open areas with tall trees. Diet: Arthropods and other small invertebrates. Sometimes fruits and small fishes. Reproduction: Builds a small nest on uncovered branches of tall trees. Lays two or three eggs. Natural history: Although it is very similar to the great kiskadee it is more dependent on trees. The vocalization is very different from the one of the kiskadee. It migrates seasonally.

60 a 70 cm. The top of the head, the back and the wings are black and the other parts of the body are mostly grey. The immature is brown and striated. Distribution: All over the world, except from the poles and Australia. Habitat: Slow flowing rivers, lakes, reservoirs and swamps. Diet: Aquatic insects, mollusks, crustaceans, fish, amphibians and reptiles. May also eat carrion and rests of food fallen from other bird’s nests, including dead hatchlings. Reproduction: Breeds in colonies together with other species of herons. The nests are built from 1 to 7m from the ground or water. Lays two or three bluish green or buffy eggs. Natural history: During most of the day it rests...

75 cm. Aquatic with narrow beak curved in the tip. The feet are webbed. The body is black and sometimes the throat is yellow. In the breeding season the male has some white feathers in the throat and ear region. The immature is fuliginous. Distribution: From Mexico to Southern South America Habitat: Lives in lakes, swamps and estuaries. Diet: Feeds on fish, even spiny ones. The gastric acids dissolve the spines. Reproduction: The nest is built on tall trees near lakes, sometimes mixing with heron flocks. Natural history: It is an excellent diver. When in flocks may pen fish schools, leading them to shallow water where they catch the fishes in frenzy. When it goes out of the wate...

22 cm. The beak is strong and black. The chest and the belly are bright yellow and the back is brown. The throat is white and the head black, with a white band above the eyes. Male and female are similar. Distribution: From Texas (U.S.A) to Patagonia. Habitat: It is one of the most generalist birds. Thrives in environments as different as rocky beaches and semi-arid landscapes. It is very common in cities. Does not penetrate dense vegetation, but may be found in forests near the riverbanks or in the borders. Diet: Also very generalist in the diet, consumes mainly insects, but also fruits, learns to catch small fish and tadpoles (as from the author’s tanks), hunts hatchlings and e...

14 cm. The legs, beak and the neck are short. The throat is red, contrasting with the fuliginous sides of the head, the back and the chest that is lighter. The belly is pale yellow. The last feather of the male’s wing is rough. Distribution: From Panama to Argentina. Migrates in the south. Habitat: Open landscapes and cities, generally near the water. Diet: Feeds on insects it catches when flying. Reproduction: Builds a nest digging holes in slopes, sometimes in colonies. Lays three to six white eggs. The couple sleeps together in the nest, but only the female incubates. The couple takes turns to feed the brood. When the offspring leave the nest they remain nearby for some ...

35 cm. The eyes and the legs are red. Has a topknot in the head and a spur in each wing. There is a black band in the throat that begins in the forehead and ends in the chest. The belly is white, the back and the wings are grayish brown and there are green and ferruginous spots in the wings. Distribution: From Panama to Tierra del Fuego. Habitat: Grasslands, open fields, lawns and sometimes soccer fields. Diet: Insects that it catches on the ground. Sometimes catches small fish in shallow wetlands. Reproduction: The nest is made of dry leaves (mainly grass) and placed in a small depression on the ground. Each male may have two females laying their eggs in the same nest. The femal...

91cm. The neck and the legs are thin and long. All white, but with iris, beak and legs yellow. Distribution: Throughout the world. Habitat: Lakes, rivers, ponds, reservoirs, swamps, mangroves, estuaries and even polluted rivers. Diet: Eats fishes, amphibians, insects. The author witnessed an egret catching and eating a mouse in a riverbank in Campinas-SP. Reproduction: Breeding takes place generally in the end of the dry season, when the food supply is more abundant for this species. During this period the adults have the egrets that are long feathers used in the courtship. The breeding couples gather in nesting sites that may have hundreds of individuals, sometimes mixing with o...

O processo de ensino-aprendizagem requer um ambiente prazeroso, que instigue interesse e motivação dos alunos. Porém indiscutivelmente os professores se deparam nas salas de aula com alunos desmotivados, falta interesse frente às aulas teóricas muitas vezes cansativas. Uma alternativa para tornar o ensino mais dinâmico e atrativo são os jogos e modelos didáticos, que auxiliam na transformação do conhecimento abstrato em significativo, proporcionando ambientes desafiadores que atraem os alunos. Os conteúdos de Genética são os conteúdos que mais necessitam do auxilio de jogos e modelos, pois trabalham com conceitos muito abstratos. Porém, há a dificuldade de encontrar jogos sobre esses conteú...

Nesse episódio falamos a respeito da importância da preservação dos tubarões, citamos fontes para maior conhecimento dos animais e incentivamos o público a não consumir e nem pescar tubarões.