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.
In the past typhoons had no name, they were usually numbered according to the sequence of the year, and there was no internationally unified regulation regarding the process. As a result, when there was more than one typhoon at any given time, identification could be very confusing.