niedziela, 17 grudnia 2017
zamknij [x]
do:

Ewolucja (142)

234... z 8

Zdjęcia

! EN_90020640_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Calendar of the Universe, computer illustration. The Universe is estimated to be about 14 billion years old. This diagram presents the history of the Universe compressed into a single year, showing the relative timing of major events. It illustrates that the origin of complex life on Earth is relatively recent on a cosmological scale with the first animals not appearing until December 10. On this timescale, the whole history of human civilization is equivalent to the final minute of the year.
! EN_90019687_0007 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Human evolution. Illustration showing stages in the evolution of humans. At left, proconsul (23-15 million years ago) is depicted hypothetically as an African ape with both primitive and advanced features. From it Australopithecus afarensis (4- 2.5 Myr BP) evolved and displayed a bipedal, upright gait walking on two legs. Homo habilis (2.5 Myr BP) was truly human ("homo") resembling Australopithecus but also used stone tools. About 1.5 Myr BP Homo erectus (at centre) appeared in Africa, used fire, wooden tools, and migrated from Africa into Eurasia. Homo neanderthalensis (200,000 years BP) lived in Europe and Middle East and was closely related to modern humans (right).
! EN_90257348_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Evolution of Przewalski's horse. Artwork showing the ancestral equid Hyracotherium sp. (left) evolving into Przewalski's horse (Equus ferus przewalskii). Przewalski's horse is also known as the Mongolian wild horse, Asian wild horse and Dzungarian horse. It is critically endangered (as of 2009).
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90256634_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Elephant evolution, artwork. These three species form the main line of the elephant evolutionary tree. The ancestor species is Palaeomastodon (top), which evolved in the Eocene (55 to 38 million years ago). This species then eveloved into Gomphotherium (centre) in the Oligocene (38 to 24 million years ago), and then Primelaphus (bottom) in the Miocene (24 to 5 million years ago). Primelaphus is the ancestor of the two modern-day elephant species: Elephas (the Asian elephant) and Loxodonta (the African elephant).
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90256634_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Elephant evolution, artwork. These three species from the elephant evolutionary tree went extinct in the Pleistocene (2 million years ago to 10,000 years ago). Mammuthus (top, the mammoth) evolved in the Pliocene (5 to 2 million years ago). Mammut (centre, the mastodon) and Stegodon (bottom) both evolved in the Oligocene (38 to 24 million years ago).
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90256634_0003 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Elephant evolution, artwork. The two modern-day elephant species are Loxodonta (top, the African elephant) and Elephas (centre, the Asian elephant). At bottom is Anancus, a species that is not an ancestor of modern-day elephants, but is part of the elephant evolutionary tree. Anancus evolved in the Miocene (24 to 5 million years ago) and became extinct in the Pliocene (5 to 2 million years ago).
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90256634_0004 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Elephant evolution, artwork. These four species are all part of the elephant evolutionary tree. They are: the Columbian mammoth (top, Mammuthus columbi), Deinotherium (centre), Platybelodon (lower left) and Moeritherium (lower right). Fossils of the Columbian mammoth date to the Late Pleistocene, and it went extinct around 10,000 years ago. Deinotherium appeared in the Middle Miocene (around 14 million years ago) and continued until the Early Pleistocene (around 2 million years ago). Moeritherium existed during the Eocene (55 to 38 million years ago) and Platybelodon existed during the Miocene (24 to 5 million years ago).
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90256635_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Elephant evolution, diagram. Nine species are named over six geologic time periods from 55 million years ago to the present. The ancestor species is Palaeomastodon (far left, in the Eocene), which evolves into Gomphotherium (in the Oligocene) and then Primelaphus (in the Miocene). This main line leads to Elephas (the Asian elephant) and Loxodonta (the African elephant) in the present (far right). Mammut (the mastodon) and Stegodon evolve in the Oligocene, becoming extinct in the Pleistocene (lower right). Anancus evolves in the Miocene, becoming extinct in the Pliocene (upper right). Mammuthus (the mammoth) evolves in the Pliocene and becomes extinct in the Pleistocene (upper right).
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90256635_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Elephant evolution, diagram. Nine species are named over six geologic time periods from 55 million years ago to the present. The ancestor species is Palaeomastodon (far left, in the Eocene), which evolves into Gomphotherium (in the Oligocene) and then Primelaphus (in the Miocene). This main line leads to Elephas (the Asian elephant) and Loxodonta (the African elephant) in the present (far right). Mammut (the mastodon) and Stegodon evolve in the Oligocene, becoming extinct in the Pleistocene (lower right). Anancus evolves in the Miocene, becoming extinct in the Pliocene (upper right). Mammuthus (the mammoth) evolves in the Pliocene and becomes extinct in the Pleistocene (upper right).
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90256635_0003 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Elephant evolution, diagram. Nine species are shown over six geologic time periods from 55 million years ago to the present. The ancestor species is Palaeomastodon (far left, in the Eocene), which evolves into Gomphotherium (in the Oligocene) and then Primelaphus (in the Miocene). This main line leads to Elephas (the Asian elephant) and Loxodonta (the African elephant) in the present (far right). Mammut (the mastodon) and Stegodon evolve in the Oligocene, becoming extinct in the Pleistocene (lower right). Anancus evolves in the Miocene, becoming extinct in the Pliocene (upper right). Mammuthus (the mammoth) evolves in the Pliocene and becomes extinct in the Pleistocene (upper right).
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90256638_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Elephant tusk evolution, artwork. These three species from the elephant evolutionary tree are: Moeritherium (top), Gomphotherium (centre) and Mammuthus (the mammoth, bottom). The artworks show the skulls, and how the tusks evolved from the incisors (front teeth). Moeritherium existed during the Eocene (55 to 38 million years ago) and had elongated incisors. Gomphotherium existed in the Oligocene (38 to 24 million years ago) and had both upper and lower tusks. The mammoths existed in the Pliocene and Pleistocene (5 million to 10,000 years ago) and only had upper tusks.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90256638_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Elephant tusk evolution, artwork. These three species from the elephant evolutionary tree are: Moeritherium (top), Gomphotherium (centre) and Mammuthus (the mammoth, bottom). The artworks show the skulls, and how the tusks evolved from the incisors (front teeth). Moeritherium existed during the Eocene (55 to 38 million years ago) and had elongated incisors. Gomphotherium existed in the Oligocene (38 to 24 million years ago) and had both upper and lower tusks. The mammoths existed in the Pliocene and Pleistocene (5 million to 10,000 years ago) and only had upper tusks.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90273128_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Plant evolution, diagram. Thirteen major groupings of plants are shown over four geologic time periods from 542 million years ago to 65 million years ago. There are four independent groupings: the club mosses, the horsetails and the ferns (all three at left), and the ginkgoes (far right). At centre are the cycads, seed ferns and cycadeoids, which are related. The seed ferns led to the evolution of flowering plants (top) which now dominate plant life on Earth. At right are the primitive conifers, which led to the evolution of the pines, redwoods and cypresses, the Auraucaria, and the podocarps.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90273128_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Plant evolution, diagram. Thirteen major groupings of plants are shown over four geologic time periods from 542 million years ago to 65 million years ago. There are four independent groupings: the club mosses, the horsetails and the ferns (all three at left), and the ginkgoes (far right). At centre are the cycads, seed ferns and cycadeoids, which are related. The seed ferns led to the evolution of flowering plants (top) which now dominate plant life on Earth. At right are the primitive conifers, which led to the evolution of the pines, redwoods and cypresses, the Auraucaria, and the podocarps.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90273128_0003 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Plant evolution, diagram. Thirteen major groupings of plants are shown over four geologic time periods from 542 million years ago to 65 million years ago. There are four independent groupings: the club mosses, the horsetails and the ferns (all three at top), and the ginkgoes (bottom). At centre are the cycads, seed ferns and cycadeoids, which are related. The seed ferns led to the evolution of flowering plants (right) which now dominate plant life on Earth. At lower centre are the primitive conifers, which led to the evolution of the pines, redwoods and cypresses, the Auraucaria, and the podocarps.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90273128_0004 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Plant evolution, diagram. Thirteen major groupings of plants are shown over four geologic time periods from 542 million years ago to 65 million years ago. There are four independent groupings: the club mosses, the horsetails and the ferns (all three at top), and the ginkgoes (bottom). At centre are the cycads, seed ferns and cycadeoids, which are related. The seed ferns led to the evolution of flowering plants (right) which now dominate plant life on Earth. At lower centre are the primitive conifers, which led to the evolution of the pines, redwoods and cypresses, the Auraucaria, and the podocarps.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90247145_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Australopithecus afarensis. Artwork of a female Australopithecus afarensis hominid with her child. This hominid lived between 3.9 and 2.9 million years ago. Fossil specimens have only be found in eastern Africa. It is thought that A. afarensis may have given rise to several lineages of early human. Compared to the modern human skull A. afarensis had a forward protruding (prognathic) face and held a smaller brain.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90222152_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Evolution. Artwork depicting the evolutionary transition from single-celled (unicellular) creatures (left) through fish, reptiles and mammals to modern humans (right). In 1859, Charles Darwin (1809-1882) showed how closely related groups of organisms could have the same evolutionary ancestry and that their divergence was propelled by natural selection, a theory that had far-reaching theological implications.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90184872_0003 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Biological diversity, conceptual computer artwork. Molecule of DNA (deoxyribonucleic acid) projecting images of different animals, representing life on Earth. Even though DNA is made up of only four base pairs (guanine, cytosine, thymine and adenine), which encode the body's genetic information, these rearrange to produce the diversity of life seen on Earth.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90184872_0004 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Biological diversity, conceptual computer artwork. Molecule of DNA (deoxyribonucleic acid) and images of different animals, representing life on Earth. Even though DNA is made up of only four base pairs (guanine, cytosine, thymine and adenine), which encode the body's genetic information, these rearrange to produce the diversity of life seen on Earth.
Wysoka rozdzielczosc dostepna na zamowienie

góra

234... z 8