Laboratório de Tecnologia Educacional BIBLIOTECA DIGITAL               DE CIÊNCIAS

A Ciência das Cores dos Olhos Fundamentos da Pigmentação Ocular: Começamos com a ciência por trás das cores dos olhos. Genética e Hereditariedade: A genética desempenha um papel crucial na cor dos olhos. O gene OCA2, por exemplo, é responsável pela quantidade e tipo de melanina na íris, enquanto outros genes influenciam como esses pigmentos se organizam. A Arte da Diversidade Ocular: A Beleza da Variedade: Além da ciência, há uma beleza intrínseca na variedade de cores dos olhos. Cada olho é único, como uma obra de arte viva. A Experiência Pessoal: Convido você a refletir sobre como a cor dos olhos pode influenciar a nossa percepção dos outros e como ela pode nos conectar com a nossa pr...

O vídeo visa capturar a diversidade dos olhos humanos através de uma série de takes rápidos, exibindo uma variedade de idades e características. A produção destaca tanto a importância científica quanto a beleza poética dos olhos, oferecendo uma reflexão sobre a singularidade de cada indivíduo.

A ilustração representa um olho humano com uma íris que exibe um espectro de múltiplas cores, demonstrando a variabilidade de tonalidades presentes em um único órgão visual.

O infográfico tem como assunto a formação da pérola, explicando a origem animais e processos envolvidos, além de curiosidades. As imagens estão livres de direitos autorais obtidas em plataformas digitais com esse fim.

O software F(C): Funções Complexas comtempla a representação gráfica do Plano Complexo a partir do conceito de domínio de cores para a geração de gráficos coloridos.

Physical appearance: 11 cm. The upper parts are dark and the inferior parts yellow. There is a white bar in the supercilium. The females are smaller than the males. The immature individuals have grey belly and do not have the bar above the eye. Distribution: From Mexico to Chile. Habitat: Inhabits various environments provided there is plenty of trees and flowers. Diet: Feeds mainly on nectar. Also eats insects. Visits hummingbird feeders. Reproduction: Builds two kinds of nest. A breeding one that is compact with thick walls and a resting nest made of leaves, grass and spider webs. Lays two or three white eggs. Only the female incubates. The male helps feeding the brood with i...

35cm Similarly to other Brazilian jays, the Curl-crested jay has white lower parts and blue and black upper parts. It may be confused with the Plush-crested jay (Cyanocorax chrysops), but while the last presents the crest in the back of the head, the yellow iris and a blue patch around the eyes, the Curl-crested jay presents the crest on the forehead, the red iris and the head is entirely black. Whereas the Old World ravens are mostly black, as well as the crows, the Brazilan corvids are colorful and most of them have white lower parts. There are 6 species of jays in Brazil, all of them extremely beautiful. The Curl-crested jay is one of Brazilian’s noisiest jays. To make the noise ...

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 ...

15cm Identification: it is one of the largest hummingbirds. It is easily identified by the forked tail, reminding a pair of scissors. Unmistakably Brazilian’s best known hummingbird, this magnificent animal is also one of the most belligerent ones. It fiercely defends its territory – usually consisting of a flowering patch – against other birds, especially the bananaquit ( Coereba flaveola ). It sucks sweet water from feeders even if these are place in the interior of the houses, fearlessly entering the rooms. Like other hummingbirds it feeds mostly on nectar but also on insects. The female lays 2 or 3 eggs in a small bow-shaped nest and feeds the nestlings mainly with arthropods.

15 cm. The body is white with a band around the eye, the wing and the tail black. Distribution: From Northeastern Brazil to São Paulo. It is currently spreading its distribution southwards. Habitat: Lives in riverbanks, muddy places near lakes and ponds. Diet: Feeds mainly on arthropods, sometimes small fruits. Reproduction: The male exhibits himself standing on the body and opening the tail and the wings. The nest is spherical with a lateral entrance. It is built on small trees above the water. The white eggs are incubated by the female. Natural history: Runs on the aquatic plants, catching insects among them. Attacks other birds that enter its territory. Some people and eve...

44 cm. The tail is long and there is a topknot. The ventral region is white. The wings are dark brown with black and white streaks. Distribution: From the state of Amapá to Uruguay. Habitat: Open fields, cerrado and caating, also in landscapes modified by man. Diet: Feeds on arthropods and small vertebrates. Reproduction: The nest may be individual or collective. It is built about 5m from the ground. The female lays up to 7 eggs, but there may be more than 20 eggs in collective nests. In the collective nests there is great competition for food among the hatchlings and few them survive. Natural history: When perched it waves its tail, swinging the body in a way that some peop...

37cm It is a unique bird that can only be confused with other Potoos, from which it differs by being mostly gray. Not like any other bird, the Potoo is one of the best camouflaged birds on earth. It spends the whole day quietly perched on a carefully chosen branch in a way it blends with the substrate as the bird seems to be part of the tree. The large orange eyes, which could be a flaw for the camouflage are wisely covered by eyelids with a tiny fold in the middle, from which the bird can see the surroundings as the pupil is exposed while the orange iris is hidden. In the night the bird leaves its perch flying as a falcon in hunt for flying insects that it catches with its huge mouth...

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...

12 cm. Small, the legs, beak and neck are short. The back is blue and the belly white. Male and female are similar. The immature individuals are brown in the upper parts and buffy in the inferior parts. Distribution: From Costa Rica to Southern Brazil. In the Amazon region it is only seen during seasonal migrations. Habitat: Farms, villlages, cities and open areas in general. Uses rocky places and roofs to rest. Diet: Feeds on flying insects. Reproduction: The nest is similar to the one of Progne chalibea. The white eggs (2 to 6) are incubated by the couple. Male and female share the task of feeding the brood. Natural history: The southern populations migrate northwards after br...

White-spotted Woodpecker 18cm. Identification: it is a small woodpecker with drab colors. The body is brown, heavily spotted and barred in darker shades of brown and with some white spots below. The male has reddish regions in the head. Very little is known about this woodpecker, probably due to its inconspicuous colors and behavior. It lives in areas with plenty of trees as parks, woods and secondary forests. This woodpecker occurs mainly in the medium and higher forest levels, rarely coming to the ground. Like other woodpeckers it feeds on insects it collects from tree trunks and also on berries.

O jogo da velha estimula o aluno a desenvolver concentração, raciocínio lógico, estratégia, além dos conceitos de botânica através de uma forma lúdica e prazerosa. A utilização do jogo lógico é um aliado no processo de ensino aprendizagem, desenvolvendo a iniciativa, autoconfiança e autonomia dos alunos. O jogo é muito parecido com o jogo da velha original, pois o objetivo é conseguir formar uma linha (horizontal, vertical ou diagonal) sendo que cada dupla possui peças de cores diferentes e realizam um movimento de cada vez.

Essa imagem foi idealizada para compor um livro ou uma apresentação de slides (ou mesmo diversos tipos e formatos de divulgação de conhecimentos, como cartilhas e posts) referentes à plantas da região do mangue brasileiro, dentro da área Biologia e da subárea Botânica. A imagem é um esquema, feito de forma levemente abstrata, que mostra todas as estruturas internas das folhas de Avicennia sp., planta abundante no manguebrasileiro, e que estão presentes na maioria das plantas dessas regiões. As estruturas estão desenhadas e descritas em cores diferentes entre si para permitir uma identificação mais precisa e tornar mais fácil sua visualização nos cortes anatômicos reais. A partir da exposição...

o conceito de seleção natural e seu papel na evolução das espécies foram explorados. A seleção natural foi definida como o processo pelo qual características vantajosas foram transmitidas de geração em geração, enquanto as desvantajosas desapareceram, utilizando-se o exemplo das borboletas com diferentes cores de asas e os notáveis tentilhões de Darwin nas Ilhas Galápagos para ilustrar seu funcionamento. Os mecanismos subjacentes, como a variação genética, sobrevivência e reprodução diferencial, bem como a herança de características vantajosas, foram discutidos. Além disso, as evidências da seleção natural, incluindo registros fósseis, observações de adaptações em ambientes naturais e estudo...

Esquemas de principais tipos de flores, evidenciando características morfológicas que são o padrão geral observado nos principais grupos taxonômicos de angiospermas. Cores auxiliam na interpretação comparativa das peças florais em diferentes flores.

O podcast em questão aborda o mimetismo em borboletas, que consiste em uma estratégia evolutiva que muitas espécies utilizam para se proteger e garantir sua sobrevivência e reprodução. Ao longo do podcast descobriremos o que define o mimetismo, quais são seus tipos, qual a diferença entre mimetismo e camuflagem e exploraremos os padrões de cores, de formas e de comportamentos que as borboletas exibem para enganar seus predadores.