Balloon shark vs Common Seal

Cephaloscyllium sufflans compared with Phoca vitulina

Taxonomic Classification

Rank	Balloon shark	Common Seal
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Carcharhiniformes (Ground Sharks)	Pinnipedia (Seals & Sea Lions)
Family	Scyliorhinidae	Phocidae (True Seals)
Genus	Cephaloscyllium	Phoca (Harbor Seals)
Species	Cephaloscyllium sufflans	Phoca vitulina

Evolutionary Relationship

Balloon shark and Common Seal share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Balloon shark

NT — Near Threatened

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Balloon shark	Common Seal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	1.7 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Balloon shark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Common Seal

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (7 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Balloon shark

The Balloon shark (Cephaloscyllium sufflans) is a species in the genus Cephaloscyllium. It is currently classified as Near Threatened on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Common Seal

The most widely distributed pinniped, harbor seals inhabit temperate and subarctic coastal waters of both the North Atlantic and North Pacific. Adults reach up to 130 kg and spend roughly equal time at sea hunting fish, squid, and crustaceans and hauling out on beaches or rocks to rest. Their large, expressive eyes are adapted for underwater vision in low light. Harbor seals are a critical food source for orcas, sharks, and polar bears.