Abbott's Duiker vs Basking shark

Cephalophus spadix compared with Rhincodon typus

Taxonomic Classification

Rank	Abbott's Duiker	Basking shark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Artiodactyla (Even-toed Ungulates)	Lamniformes (Mackerel Sharks)
Family	Bovidae (Bovids)	Rhincodontidae (Whale Sharks)
Genus	Cephalophus	Rhincodon (Whale Sharks)
Species	Cephalophus spadix	Rhincodon typus

Evolutionary Relationship

Abbott's Duiker and Basking shark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Abbott's Duiker

EN — Endangered

Basking shark

EN — Endangered

Trend: Decreasing ↓

Physical Characteristics

Attribute	Abbott's Duiker	Basking shark
Diet	—	Omnivore
Average Lifespan	—	100 years
Average Length	—	12.0 m
Average Weight	—	20.0 t

Habitat & Geographic Range

Abbott's Duiker

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Basking shark

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Distributed across Chile, Portugal, Taiwan, and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Abbott's Duiker

The Abbott's Duiker (Cephalophus spadix) is a species in the genus Cephalophus. It is listed as Endangered on the IUCN Red List. It typically inhabits diverse terrestrial and aquatic ecosystems. Habitat records describe it as occurring in diverse terrestrial and aquatic ecosystems.

Basking shark

The world's largest fish, whale sharks can exceed 12 meters and 20 tonnes, inhabiting tropical and warm temperate oceans worldwide. Despite their massive size, they are harmless filter feeders, consuming plankton, fish eggs, and small fish by swimming open-mouthed through prey-dense water. They undertake vast seasonal migrations following plankton blooms. Endangered due to fishing, boat strikes, and the live fin trade, with population declining by approximately 50% over the past 75 years.