Laboratório de Tecnologia Educacional BIBLIOTECA DIGITAL               DE CIÊNCIAS

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...

Physical appearance: 17,5 cm. The male is bluish black with the forehead and chest chestnut. The female is olive brown streaked in brown in the upper parts. The immature is brown and striated. Distribution: Eastern South America from French Guyana to northern Argentina and as far west as Mato Grosso and eastern Bolivia. Habitat: Lives in humid grasslands, wetlands and ponds. Diet: Feeds mainly on insects and seeds, but also on fruits. Reproduction: Often nests in groups. The nest is built in a fork of a tree. Both male and female build the nest watering the material before using it. The nest is a deep basket. Natural history: The vocalization is melodic and commonly the predomi...

Physical appearance: 26 cm. The upper parts are green, somewhat yellow, barred in black. The inferior parts are buffy or white, also barred. The tail and the top of the head are black. The male has a red spot below the eye while in the female this spot is black. Distribution: From Eastern Amazon to Uruguay and Argentina. Habitat: Forest borders, gallery and secondary forests, woods and parks in cities. Diet: Feeds on ants and insect larva, mainly beetles. Also eats fruits. Reproduction: After courtship the couple builds a nest inside an old tree, sometimes palm trees and others. The nest is generally downwards, avoiding the water when it rains. Two to four eggs are laid and the ...

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 ...

18,5 cm. The body is gray, slightly blue with the inferior parts lighter. The tail and the tips of the wings are blue, somewhat green. There is a spot of this color in the shoulders. Male and female are similar. Distribution: Mideast Brazil from Maranhão to Rio Grande do Sul, also in Venezuela, Colombia, Bolivia, Argentina, Paraguay and Uruguay. Habitat: Lives on trees, either in open areas, parks or cities. Diet: Feeds on fruits, leaves, buds, nectar including from eucalyptus trees. Also catches flying insects as butterflies and termites. Reproduction: During the breeding season the male exhibits its shoulders to the female. The nest is built by the couple and is a compact open...

19cm. The plumage is squamous. The general coloration is brown with some grayish parts. There is a white wingbar (when closed). When flying it shows a pattern of white in the wings and tail. Distribution: From Venezuela to Argentina. Habitat: Inhabits dry fields, cerrado, caatinga and parks in urban areas. Diet: Feeds on grains and fruits on the ground. Reproduction: It is monogamous. Builds a sparse nest in the shape of a cup, 1 or 2m from the ground, sometimes on the ground. The hatchlings (generally 2) are fed on pigeon’s milk that is rich in fat, proteins and lectines. They leave the nest after 15 days. The vocalization is very characteristic and in many places it is named a...

Just like other seedeaters, it is practically impossible to tell this species apart from the brownish females, virtually identical to the other seedeaters’ females. Nevertheless the males present the chest and the head in black, the upper parts dark brown and the belly is yellow or beige. Its behavior is very similar to other seedeaters and may form mixed groups with other species when not breeding. It is less urban than the Double-collared and the Lined Seedeaters, being more common in grasslands and grain crops. May be raised as a cage bird. In the breeding season the couples split from the groups. The nest is a low bow made of grasses and the female usually lays 2 or 3 eggs.

16cm. Identification: The male is practically unmistakably recognized for the fully barred body and a black crest in the head. The female is ferruginous and has a crest and is barred in the head. It is currently the only antshrike which lives in really urban and disturbed areas. It is worth reminding that this bird has only recently conquered the urban environment. In the early 80s the first records of this antshrike in large cities were so unexpected that they yielded notes in scientific papers. Like other antshrikes it lives in couples, leaping and flying from branch to branch, usually through the short trees’ canopy in search for the small arthropods it feeds on. In the breeding seas...

11 cm. The beak is grey. During the breeding season the male has bluish black feathers with white spots under the wings. When not breeding the feathers are black with white tips. The female is light brown. The subadult males are similar to the non-breeding adult but with the tip of the feather brown. Distribution: From Mexico to tropical South America. Habitat: Grasslands and open areas, sometimes inside cities. Diet: Feeds on seeds and insects. Reproduction: The male has a very typical breeding display. Perched in a branch it flies some 50cm upwards and comes back to the branch in a loop-like movement. During this display it shows its white feathers below the wings. When it fi...

25 cm. The body is brownish grey, with the upper parts darker . The tip of the tail is white. There are two horizontal black bands in the sides of the head and on the wings. The male is bluish on the top of the head. Distribution: South America. Habitat: Open fields, cerrado, caatinga, crops, parks, lawns, urban areas. It is benefitted by deforestation Diet: Mainly grains, but also small fruits. When breeding also consumes snails and millipedes. Reproduction: During courtship the male produces a low sound different from its usual one. The male exhibits its strength to the female and the couple caresses each other in the head. The nest is a platform made of sparse sticks built on t...

Imagens do Diabásio, rocha ígnea de coloração cinza-escura a preta, estrutura maciça e granulação fina. Ocorre geralmente na forma de diques ou soleiras, como no caso do município de Campinas. Local de ocorrência em Campinas: Noroeste do município de Campinas  Formação a qual pertence: Formação Serra Geral  Tipo de rocha: Rocha Ígnea  Características da rocha: Rocha de granulação fina, ocorre normalmente na forma de diques, ou sills como no caso do município.   Descrição visual: Rocha de coloração cinza escuro a preto, granulação fina a muito fina. Possui estrutura maciça, e o quartzo ocorre somente como mineral acessório.   Descrição da textura (ao tato): a granulação fina dá uma t...

as plantas respondem a estímulos externos, de forma a se adequarem ao ambiente. A luz exerce influência sobre a parte aérea (caule e folhas) das plantas, de forma que essa parte cresce em direção à luz, a fim de fazerem fotossíntese adequadamente. Quando plantas de mostarda são cultivadas em caixa escura, com uma abertura lateral, por onde passa um foco direcionado de luz, há um maior crescimento das células do lado sombreado, levando à curvatura dos caules em direção ao foco de luz. É apresentado um experimento alternativo, para qual é usado apenas um feijoeiro e um saco plástico preto. São apresentados os resultados esperados e as explicações para os mesmos.

Imagem de fundo marrom com um círculo formado uma fita de DNA de cor preta, dois ramos de flores pretos, sendo que o ramo da esquerda apresenta uma abelha preta sobre a flor. No centro do cículo apresenta-se uma imagem da personagem Alice do livro Alice no País das Maravilhas de Lewis Caroll da cintura para baixo e de ponta cabeça, como se estivesse entrando na toca do coelho, personagem da mesma obra. Na parte superior direita aparece o título do podcast: