Answer : Yes, a Porpoise is heavier than a Mongoose
The average weight of a Porpoise is 53 kg, (117 lbs) versus 2 kg, (4 lbs) for a Mongoose 
 
| Name | Name:Porpoise | Name:Mongoose | 
| Weight | Weight:53 kg, (117 lbs) | Weight:2 kg, (4 lbs) | 
|  | * Harbor Porpoise - ranges from 45 to 60kg | * Egyptian Mongoose - ranges from 1.7 to 4kg | 
| Height | Height:n/a | Height:53 cm, (1 ft, 8.9 in ) | 
| Top Speed | Top Speed:23 kph, (14 mph) | Top Speed:32 kph, (20 mph) | 
| Lifespan in Wild (years) | Lifespan in Wild (years):15 | Lifespan in Wild (years):12 | 
| Description | Description:Harbor Porpoise are among the smallest cetaceans in the ocean. It has small flippers and lives inshore, so is the best-studied of the cetaceans. Their loud puffing sounds make them easy to find. | Description:The Egyptian Mongoose lives in hollow logs, burrows, and holes in the ground which are near a water source. They have grey fur with brown dots. They have a low, long body which can be mistaken for a reptile at a distance. | 
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