An extinct group of Cephalopoda, with solid external skeletons. They are excellent index fossils.
A mammal with features typical of reptiles: it lays eggs and has a cloaca.
A prehistoric flying reptile, similar to birds. However, there is no direct evolutionary link between the two.
This animation demonstrates how mobile phones work.
This animation demonstrates the structure and operation of digital cameras.
This animation demonstrates the structure and operation of different types of optical disc drives.
Quetzalcoatlus was one of the largest known flying animals of all time.
The earliest version of the lute appeared in ancient Mesopotamia.
Marine mammals, the largest known animals to have ever existed.
Penguins are birds living in the Antarctic and adapted to cold temperature and swimming.
This animation demonstrates the anatomy of tulips, daffodils and snowdrops.
A type of rotary engine of high efficiency
This animation demonstrates how a CRT television works.
Many freshwater fishes are also popular as food.
Public schools in villages played an important role in education.
The masterpieces of ancient Greek potters are important archaeological artefacts.
An ancient Greek myth about the tragedy of father and son who wanted to flee the island of Crete.
A long pipe in the centre of the tower penetrates the ocean bed until it reaches the layer that contains oil.
The withdrawal reflex is a spinal reflex that ensures moving away from potentially damaging stimuli.
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