Laboratório de Tecnologia Educacional BIBLIOTECA DIGITAL               DE CIÊNCIAS

Ilustração das estruturas anatômicas de dois corações diferentes de peixes.

Ilustração sobre as etapas do processo de eutrofização incluindo algumas causas e consequências. Conteúdo 1. Causas: resíduos industriais, fertilizantes e esgoto sem tratamento. 2. Etapas: excesso de nutrientes → cresciento de algas e microrganismos → bloqueio da luz solar → morte de plantas aquáticas → decomposição → morte de peixes → prejuízo para as comunidades costeiras.

Physical appearance: 40 cm. The feet are red and webbed. The chest is brown, as well as the face that is a bit darker. There is a patch of iridescent feathers in the wings. When flying it shows a large white spot at the back of the wing. The male has a red beak and the female’s is blue. The Female also has white spots on the face. Distribution: From Venezuela to Argentina. Habitat: Wetlands, lakes, ponds and rivers even in polluted places. Diet: Feeds on seeds, leaves and small invertebrates. The hatchlings are goot at catching insects. Reproduction: Lays up to 14 bluish or greenish eggs. When the adult realizes the presence of a potential predator it distracts its attention...

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....

48 cm. The face is grey, the chest cinnamon and the belly black. There is a large white spot in the wings, more evident when flying. The beak and feet are red. Males and females are similar. The immature is grayish brown Distribution: From Texas (U.S.A) to Bolivia and Argentina. Habitat: Lives in lakes, rivers, wetlands and even in mangroves. Diet: Feeds on leaves, small seeds and aquatic invertebrates. Reproduction: The nest is built on the ground or hollow trees. The eggs are white, sometimes greenish or bluish. More than one female may lay eggs in the same nest and sometimes may even lay eggs in other species’s nests such as the white faced whistling duck (Dendrocygna viduata)....

48cm Identification: the body is mostly cinnamon with dark streaks on the wings. It may be locally the commonest duck, especially in Southern Brazil wetlands, where its hunting is allowed provided the state’s quotas are respected. Regarding its habitat this species tends occur in open wetlands, surrounded by grasslands. Feeds mainly by grazing small grasses on the lake shores or underwater but also eats aquatic plants, aquatic insects and small fish. It may build the nest either in a tree hole or on the aquatic plants. The female lays from 8 to 14 eggs that are sat for about one month. The offspring start to fly within 55 days after hatching.

41,5 cm. Medium size. The feet are webbed. Has a distinctive white mask. The chest and the belly are streaked with cinnamon. The wings are broad and black. The female is slightly larger than the male. Distribution: Tropical South America and Africa. Habitat: Wetlands, lakes, ponds, mostly in shallow water. Diet: It eats buds, seeds, insect larvae, crustaceans and worms. Food is filtered by its specialized beak Reproduction: Builds a nest on the ground in a hidden place. 8 to 14 eggs are laid and incubated by the couple for 27 to 30 days. Male and female take care of the brood. Natural history: Its vocalization is very typical. It is more active at twilight or at night, resting ...

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 ...

35 cm. The legs and the toes are long and green. Has a red shield-like structure in the forehead that is larger in the male. The neck and inferior parts are blue. The back is brown and there is a white band in the wing. The immature individuals are brown. Distribution: All over the world, except from Australia and New Zealand. Habitat: Lives in lakes, ponds and swamps, provided there is plenty of aquatic vegetation. May be found even in very polluted places and brackish water. Diet: Feeds on vegetables and aquatic insects. Usually dives to catch the food. When it does not dive it waters the food before swallowing. Reproduction: The nest is built among the aquatic vegetation. Th...

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...

53 cm. It is a beautiful heron with the upper parts grayish blue, the neck and the ventral region brownish yellow. The face is blue. Distribution: Open areas from Colombia to Argentina. Habitat: Unlike other herons it may be found very far from the water, thriving in open fields and only occasionally in wetlands. Diet: Feeds on mollusks, amphibians, lizards and insects, mainly grasshoppers. Hunts on the ground revolving the earth and grass with its beak. Reproduction: The courtship is very complex, beginning with displays of the male on the ground and then in the air. The nest is very simple and is built on tall trees. Lays 2 to 4 bluish grey eggs. Natural history: It is often...

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...

This illustration depicts three different stages of embryonic development regarding two species: a fish and a chicken, as shown on the drawing. Fish have only the yolk sac as extra-embryonic tissue. These structures in chicken comprise, besides the yolk sac, the amniotic cavity, chorion and allantois.

A proposta desse jogo é apresentar através das cartas de baralho o grupo dos vertebrados para os estudantes do 2º ano do ensino médio. O Baralho dos vertebrados é composto de 54 cartas onde cada conjunto é representado por um grupo de vertebrados: PEIXES ÓSSEOS, PEIXES CARTILAGINOSOS, ANFÍBIOS, RÉPTEIS, AVES E MAMÍFEROS. Para o jogo os alunos são divididos em grupo de cinco integrantes, sendo que cada um recebe cinco cartas para iniciar o jogo. Em cada rodada, o jogador compra uma carta da mesa e passa uma de suas cartas para o jogador à sua esquerda. O último jogador da rodada descarta sua carta na mesa.