Many mammals sleep for a large proportion of each 24-hour period when they are very young. However, killer whales and some other dolphins do not sleep during the first month of life. Instead, young dolphins and whales frequently take rests by pressing their body next to their motherâs while she swims.
typhoon meaning, definition, what is typhoon: a violent wind that has a circular movement, found in the West Pacific Ocean: . Learn more.
'Cyclone' can be a confusing word because it refers to many different types of storms. However, all cyclones are spinning storms that rotate around a low-pressure center. This means that hurricanes, typhoons and tornadoes are all types of cyclones. What makes each cyclone unique is its location. Tornadoes occur over land, polar cyclones occur in polar regions and tropical cyclones occur over tropical oceans.