Hibernate - when an animal's body goes into a deep sleep for a long period of time and the animal's heart rate, temperature, and breathing all drop or slow down.
(an animal's body; goes; into a deep sleep; T:for a long period of time and the animal's heart rate, temperature, and breathing all drop or slow down)
an animal's body
goes
into a deep sleep T:for a long period of time and the animal's heart rate, temperature, and breathing all drop or slow down