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Some male birds and mammals congregate in communal courting grounds called leks.
Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th
A resonance tube, called a Helmholtz resonator, is used on the intake duct between the air filter ...
With the research technique called brainbow, each neuron is labeled with a different color, ...
Five layers or sheaths called koshas in Ayurvedic philosophy.
A thin cleft, called the synapse, separates one cell from another.