Archaeopteryx

Archaeopteryx

The archaeopteryx shows characteristics of both birds and reptiles. It is probably the ancestor of birds.

Bioloģija

Atslēgvārdi

Arheopterikss, arheopterikss, aizvēsturiska būtne, Fosilija, Jurass laiks, dinozaurs, reptilis, putns, rekonstrukcija, olu, skelets, planēšana, plēsējs, mugurkaulnieki, dzīvnieks, gaļēdāji, Bioloģija

Saistītie vienumi

Ainas

Saistītie vienumi

Types of feathers

The animation demonstrates the most important types of feathers and their fine structure.

Ammonites

An extinct group of Cephalopoda, with solid external skeletons. They are excellent index fossils.

Carboniferous flora and fauna

This animation presents some animals and plants that lived between the Devonian and Permian periods (358–299 million years ago).

Common blackbird

This animation demonstrates birds' bones and eggs through the example of the common blackbird.

Common kingfisher

The characteristic colours of the common kingfisher aid the bird in catching its prey.

Deinonychus

Deinonychus antirrhopus, the 'terrible claw', was a carnivorous dromaeosaurid dinosaur.

Emperor penguin

Penguins are birds living in the Antarctic and adapted to cold temperature and swimming.

Glaciation

The last Ice Age ended about 13 thousand years ago.

Homo erectus

The ‘upright man’ used tools and could set fire.

How do geckos' feet adhere to smooth surfaces?

Geckos can walk on walls or even ceilings. The 3D scene explains this ability.

Ichthyostega

A prehistoric amphibian and an early representative of the Tetrapods, which became extinct 360 million years ago.

Mallard

This animation demonstrates the anatomy of birds through the example of mallards.

Marsh harrier

Marsh harriers are birds of prey found almost worldwide.

Pteranodon longiceps

A prehistoric flying reptile, similar to birds. However, there is no direct evolutionary link between the two.

Quetzalcoatlus, a giant pterosaur

Quetzalcoatlus was one of the largest known flying animals of all time.

Saker falcon

The saker falcon is a large bird of prey widespread in Europe and and Asia.

Trilobites

The ancestors of Arachnida and Crustacea belonged to the class Trilobita.

Western jackdaw

Groups of western jackdaws are frequently found in cities. Konrad Lorenz analysed the complex social behaviour of these animals.

Woolly mammoth

Extinct proboscidea closely related to today's elephants, often hunted by prehistoric man.

Continental drift on a geological timescale

The Earth's continents have been in constant motion during the history of the planet.

Veiled chameleon

Chameleons are reptiles with an ability to change their colours.

Apatosaurus

Long-necked herbivorous dinosaur with a robust body.

Ichthyosaur

Fish-like marine dinosaurs which resembled dolphins; a good example of convergent evolution.

Karaliskais tiranozaurs jeb “tirāniskā ķirzaka”

Milzīgs gaļēdājs un pazīstamākais dinozaurs pasaulē.

Stegosaurus

A type of prehistoric reptile having bony plates on its back, which aided thermoregulation.

Tiktaalik

A transitional form between fish and tetrapods, or four-limbed vertebrates.

Triceratops

A type of herbivorous dinosaur easily recognisable by its large frill and three horns which lived in the Cretaceous period.

West Indian Ocean coelacanth

Living fossil, important stage in the evolution of tetrapods.

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