When Fish Wore Armor

About this film

420 million years ago, some fish species, such as Dunkleosteus, exhibited unique armor made of large plates and interlocking scales. This protective feature, often associated with defense against predators, may have also played a crucial role in their feeding strategies and environmental interactions. The evolution of these armored fish provides insights into the early development of vertebrate anatomy and the ecological dynamics of the Late Devonian period, a time marked by significant marine biodiversity and evolutionary advancements.

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Secutor

A secutor was a class of gladiator in ancient Rome. Thought to have originated around AD 50, the secutor was armed similarly to the murmillo gladiator and like the murmillo, was protected by a heavy shield. A secutor usually carried a short sword, a gladius, or a dagger. The secutor was specially trained to fight a retiarius, a type of lightly armoured gladiator armed with a trident and net.

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Evolution

Evolution is the change in the heritable characteristics of biological populations over successive generations. It occurs when evolutionary processes such as genetic drift and natural selection act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. The process of evolution has given rise to biodiversity at every level of biological organisation.

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Marine conservation

Marine conservation, also known as ocean conservation, is the protection and preservation of ecosystems in oceans and seas through planned management in order to prevent the over-exploitation of these marine resources. Marine conservation is informed by the study of marine plants and animal resources and ecosystem functions and is driven by response to the manifested negative effects seen in the environment such as species loss, habitat degradation and changes in ecosystem functions and focuses on limiting human-caused damage to marine ecosystems, restoring damaged marine ecosystems, and preserving vulnerable species and ecosystems of the marine life. Marine conservation is a relatively new discipline which has developed as a response to biological issues such as extinction and marine habitats change.

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Dinosaur

Dinosaurs are a diverse group of warmblooded reptiles of the clade Dinosauria. They existed through most of the Mesozoic era, first appearing early in the Triassic period. They became the dominant terrestrial vertebrates after the Triassic–Jurassic extinction event 201.3 mya and their dominance continued throughout the Jurassic and Cretaceous periods. The fossil record shows that birds are feathered dinosaurs, having evolved from earlier theropods during the Late Jurassic epoch, and are the only dinosaur lineage known to have survived the Cretaceous–Paleogene extinction event approximately 66 mya. Dinosaurs can therefore be divided into avian dinosaurs—birds—and the extinct non-avian dinosaurs, which are all dinosaurs other than birds.

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Dinos

In the typology of ancient Greek pottery, the dinos is a mixing bowl or cauldron. Dinos means 'drinking cup', but in modern typology is used for the same shape as a lebes, that is, a bowl with a spherical body, often accompanied by a wheel-turned stand. It has no handles and no feet. Literary references to such vessels are known from the Iliad, and examples have been found from between the seventh and fifth centuries BCE. Ancient artists who painted dinoi include the Dinos Painter, the Gorgon Painter, the Berlin Painter, Exekias and Sophilos.

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