Ballena azul vs Nile Crocodile

Balaenoptera musculus compared with Crocodylus niloticus

Key Differences

Ballena azul is Vulnerable while Nile Crocodile is Least Concern.
Ballena azul is 200.0x heavier than Nile Crocodile.
Ballena azul lives longer (90 years vs 70 years).

Taxonomic Classification

Rank	Ballena azul	Nile Crocodile
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Reptilia (reptil)
Order	Cetacea (Whales & Dolphins)	Crocodylia (Crocodilians)
Family	Balaenopteridae (Rorquals)	Crocodylidae (Crocodiles)
Genus	Balaenoptera (Rorquals)	Crocodylus (True Crocodiles)
Species	Balaenoptera musculus	Crocodylus niloticus

Evolutionary Relationship

Ballena azul and Nile Crocodile share a common ancestor at the Phylum level: Chordata. (cordados)

Vista Phylum: Chordata

Conservation Status

Ballena azul

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Nile Crocodile

LC — Least Concern

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Ballena azul	Nile Crocodile
Diet	Carnivore	Carnivore
Average Lifespan	90 years	70 years
Average Length	30.0 m	5.0 m
Average Weight	150.0 t	750.0 kg

Habitat & Geographic Range

Ballena azul

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Nile Crocodile

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Distributed across Egypt, Kenya, Madagascar, South Africa, and Tanzania.

Ballena azul

El animal más grande que se conoce haya vivido en la Tierra; las ballenas azules pueden alcanzar 33 metros y 200 toneladas — sus corazones solos pesan tanto como un automóvil pequeño. Se encuentran en todos los océanos y migran entre las zonas de alimentación polares y las áreas de reproducción tropicales. Son filtradoras que consumen hasta 4 toneladas de kril al día. En peligro de extinción, con poblaciones globales estimadas entre 10.000 y 25.000 tras casi extinguirse por la caza de ballenas en el siglo XX.