verb (used with object), trundled, trundling. 1. to cause (a circular object) to roll along; roll. 2. to convey or move in a wagon, cart, or other wheeled vehicle; wheel: The farmer trundled his produce to market in a rickety wagon.
Hippos are threatened by habitat loss and poachers who hunt them for their meat and teeth. A male hippopotamus is called a âbullâ. A female hippopotamus is called a âcowâ. A baby hippo is called a âcalfâ. A group of hippos in known as a âherdâ, âpodâ, âdaleâ or âbloatâ. Hippos typically live for around 45 years. Hippos eat mostly grass.
Reproduction | Hippo Facts For Kids. 1  Female reach the maturity at the age of 6. 2  The gestation period lasts for about 8 months. 3  Males become mature after 7.5 years. 4  Baby hippos weigh around 25 â 45 kg (60 â 110 lb), with the average length measuring at 127 cm (50 inches). 5  The baby hippos are usually born in water.