The axolotl, also known as Mexican salamander, is an amphibian species that keeps its gills even in adulthood.
Organs that detect signals of the environment or of the body and transmit them to the brain as nerve impulses.
This animation helps you learn the basics of healthy eating.
Remarkable civil engineering works to continue the Netherland's centuries-long fight against the sea.
The V-1 flying bomb was an early pulse-jet-powered cruise missile developed in Nazi Germany and deployed in WWII.
The Japanese Mitsubishi A6M, commonly known as 'Zero' to the Allies, was a legendary aircraft of the Second World War.
A long pipe in the centre of the tower penetrates the ocean bed until it reaches the layer that contains oil.
This animation demonstrates the structure and operation of digital cameras.
Before the American Civil war the use of slaves on plantations was typical in the Southern states.
As opposed to opencast mines, in underground mines the layers covering coal are not removed, coal is extracted from mine shafts.
Industrial estates provide infrastructure and services for companies.
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 spacecraft on its path is in a constant state of free fall.
A prehistoric flying reptile, similar to birds. However, there is no direct evolutionary link between the two.
This animation demonstrates the structure and operation of different types of optical disc drives.
This animation demonstrates different types of soil.
Quetzalcoatlus was one of the largest known flying animals of all time.
The earliest version of the lute appeared in ancient Mesopotamia.
The naval battle fought by the British Navy against the German Navy was the largest sea battle in World War I.