Ballena azul vs Common sawfly

Balaenoptera musculus compared with Fenusella hortulana

Key Differences

• Ballena azul is Vulnerable while Common sawfly is Not Evaluated.

Taxonomic Classification

Rank	Ballena azul	Common sawfly
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (cordados)	Arthropoda (artrópodos)
Class	Mammalia (mamíferos)	Insecta (insecto)
Order	Cetacea (Whales & Dolphins)	Hymenoptera (himenópteros)
Family	Balaenopteridae (Rorquals)	Tenthredinidae
Genus	Balaenoptera (Rorquals)	Fenusella
Species	Balaenoptera musculus	Fenusella hortulana

Evolutionary Relationship

Ballena azul and Common sawfly share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Ballena azul

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Common sawfly

NE — Not Evaluated

Physical Characteristics

Attribute	Ballena azul	Common sawfly
Diet	Carnivore	—
Average Lifespan	90 years	—
Average Length	30.0 m	—
Average Weight	150.0 t	—

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.

Common sawfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (4 countries) and North America (Canada, United States).

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.

Common sawfly

<em>Fenusella hortulana</em> is a small sawfly belonging to the order Hymenoptera and the family Tenthredinidae, a diverse group of plant-feeding insects commonly known as leaf-mining sawflies. This species is distributed across parts of Europe and North America, where it is typically associated with deciduous woodland edges, hedgerows, and gardens that support its host plants. Like other members of its genus, <em>Fenusella hortulana</em> typically undergoes complete metamorphosis, with larvae mining the leaves of woody plants, creating distinctive blotch or linear mines visible to observers. Adults are generally small and inconspicuous, resembling miniature wasps. The species has not been formally evaluated by the IUCN, and its global population status remains unknown. Biological traits for this species remain poorly documented in the scientific literature, including specific data on lifespan, body dimensions, weight, and detailed dietary preferences beyond general leaf-mining behavior. Conservation concern is currently low given its apparently stable presence across its range, though habitat degradation may affect local populations.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden