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Exploration occurs in all non-sessile animal species

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These so-called "hotspots"

Hungary Space Satellite Rocket Earth Astronautics Souvenir Sheet Mint NH Rose Malawi Cat Domestic Animal FlowerHungary Space Satellite Rocket Earth Astronautics Souvenir Sheet Mint NH Space is the boundless three dimensional extent in which objects and events have relative position and direction. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of a boundless four dimensional continuum known as spacetime. The concept of space is considered to be of fundamental importance to an