Answer : A Groundhog is lighter than an Otter
The average weight of an Otter is 30 kg, (66 lbs) and the average weight of a Groundhog is 2 kg, (4 lbs)
 
| Name | Name:Otter | Name:Groundhog | 
| Weight | Weight:30 kg, (66 lbs) | Weight:2 kg, (4 lbs) | 
|  | * Sea Otter - ranges from 14 to 45kg |  | 
| Height | Height:90 cm, (2 ft, 11.4 in ) | Height:50 cm, (1 ft, 7.7 in ) | 
| Top Speed | Top Speed:11 kph, (7 mph) | Top Speed:8 kph, (5 mph) | 
| Lifespan in Wild (years) | Lifespan in Wild (years):23 | Lifespan in Wild (years):4 | 
| Description | Description:Sea Otters are marine mammals in the waters of the northern and eastern Pacific. They have the warmest and thickest coat of fur of all animals and also have a waterproof outer layer. They are omnivores that feast on aquatic plants and seaweeds. | Description:Groundhogs are fairly large for rodents, and they are best known for hibernating throughout the winter and predicting spring. They are brown and are members of the squirrel family. | 
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