Marburgviruses are endemic in arid woodlands of equatorial Africa. Johor is located in a tropical region with an equatorial climate. It has equatorial and polar radii of and , respectively. Species diversity is highest in equatorial regions. Christmas Island is located towards the southern edge of the equatorial region. Caves were the ideal place to shelter from the midday sun in the equatorial regions. Thatching materials range from plains grasses to waterproof leaves found in equatorial regions. This area is part of the Atlantic Equatorial coastal forests ecoregion. There are regular patterns of prevailing winds found in bands round the Earth's equatorial region. This is the principle behind the armillary sphere and the equatorial bow sundial. He concluded that these moons formed from equatorial accretion disks. Surrounding ocean waters are warm, pushed by equatorial and counter-equatorial currents. They tend to flower all year round in equatorial regions. Malabo is the capital city of Equatorial Guinea. Malabo is the oldest city in Equatorial Guinea.