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Animals Picture Gallery |
Birds Picture Gallery |
Birds are a group of winged theropod dinosaurs and are the only living dinosaurs. Similarly, birds are considered reptiles in the modern cladistic sense of the word, and their closest living relatives are crocodiles. The birds are descendants of the primitive avalanche (whose members include Archeopteryx) that first appeared in China about 160 million years ago (Maiya). According to DNA evidence, modern birds (Neuroniths) evolved from the Middle to Late Cretaceous, and the Cretaceous – Paleogene extinction event dramatically diversified around the time of 66 Maia, killing pterosaurs and all non-avian dinosaurs
bizarre food picture gallery |
Crops Picture Gallery |
Most crops are harvested as food for humans or fodder for animals. Some crops are gathered from the wild (including intensive gathering, e.g. ginseng).
Non-food crops include horticulture, floriculture, and industrial crops. Horticultural crops include plants used for other crops (such as fruit trees). Floriculture includes bed plants, houseplants, flowering gardens, and pot plants, chopped greens, and chopped flowers. Industrial crops are produced for clothing (fiber crops), biofuels (energy crops, algae fuels), or medicine (medicinal plants).
Dinosaurs Picture Gallery |
Dinosaurs are a diverse group of reptiles of clade Dinosauria. They first appeared 243 to 233.23 million years ago during the Tricia period, although the exact origin and timing of the evolution of dinosaurs is the subject of active research. They became the dominant terrestrial vertebrates after the Triassic – Jurassic extinction event 201.3 million years ago; Their dominance continued throughout the Jurassic and Cretaceous periods. The fossil record suggests that the birds are modern winged dinosaurs, which evolved from earlier theropods during the Late Jurassic era and are the only dinosaur lineage to survive the Cretaceous – Paleogene extinction event about 66 million years ago. Dinosaurs can therefore be divided into avian dinosaurs or birds; And extinct non-avian dinosaurs, which are all dinosaurs except birds.
food picture gallery |
Food, a substance that contains proteins, carbohydrates, fats, and other nutrients, is used to maintain growth and vital processes in the body of an organism and to provide energy. ... The absorption and use of food by the body is fundamental to nutrition and is facilitated by digestion.
Fishes Picture Gallery |
Fish, any of about 34,000 species of vertebrate animals found in fresh and saltwater around the world (Phylum Chordata), are found. Living species range from primitive jawless lampreys and hagfish through cartilaginous sharks, skates, and rays to abundant and diverse bony fishes.
Fish are gill-grilling aquatic crench animals that lack limbs with digits. They together form a sister group to the tanks, forming tunnels. This definition includes the surviving hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. About 99% of the living fish species are ray-finned fish, which belong to the class actinopristy, as well as more than 95% belong to the Teleost subgroup.
The earliest organisms that can be classified as fish were the soft-bodied fossils that first appeared during the Cambrian period. Although they lacked a true spine, they had notochords that allowed them to be more agile than their invertebrate counterparts. The fish will continue to evolve through the Paleozoic era, bringing diversity in a wide variety of forms. Much Paleozoic fish developed outer shells that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than merely hunting for arthropods.
Flowers Picture Gallery |
There are two types of pollination that are self-pollination and cross-pollination. Self-pollination occurs when pollen from ether accumulates on the stigma of another flower on the same flower, or on the same plant. Cross-pollination is the transfer from the anthers of one flower to the stigma of another flower on a different individual of the same species. Self-pollination occurred in those flowers, where the stamen and carpel mature at the same time, and are positioned so that pollen can descend to the stigma of the flower. This pollination does not require investment from the plant to provide nectar and pollen as food for pollination.
Some flowers produce diaspores without fertilization (parthenocarpy). The flowers contain sporangia and are the place where gametophytes develop. Many flowers have evolved to be attractive to animals, which causes them to be vectors for the transfer of pollen. After fertilization, the ovary of the flower develops into a fruit containing seeds.
frogs and toads |
A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura. The oldest fossil "proto-frog" appeared in the early Triassic of Madagascar, but molecular clock dating suggests their origins may extend further back to the Permian, 265 million years ago. Toad is a common name for certain frogs, especially of the family Bufonidae, that are characterized by dry, leathery skin, short legs, and large bumps covering the parotoid glands.
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