📸 PhotoTwo killer whales photographed off the south side of Unimak Island, eastern Aleutian Islands, Alaska
Photo: Robert Pittman · Public domain · Wikimedia Commons Source
Orca (Killer Whale)
Orcinus orca (Orca (Killer Whale) · シャチ)
💡 Everyday Comparisons for Size, Mass & Speed
- 📏 Length 9m — ~1.8× the length of a mid-size sedan (4.9 m)
- 🏢 Height 2.2m — ~1.3× the height of a 1.75 m human
- ⚖️ Mass 6t — Equivalent to ~6 compact cars (~1 t each)
- ⚡ Speed 56km/h — ~1.5× Usain Bolt's 100 m world-record average speed (37.6 km/h)
Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.
Site-computed relative index from recorded values; not a formal scientific metric.
📖 1. Overview
It is the largest species in the oceanic dolphin family and the undisputed apex predator of modern marine ecosystems. Matrilineal pods pass down sophisticated dialects and hunting cultures, and because research into speciation across ecotypes is ongoing, it is listed as Data Deficient (DD) on the IUCN Red List.
🌐 Wikipedia Summary ExtractThe orca, or killer whale, is a toothed whale and the largest member of the oceanic dolphin family. The only extant species in the genus Orcinus, it is recognizable by its distinct pigmentation; being mostly black on top, white on the bottom and having recognizable white eye patches. A cosmopolitan species, it inhabits a wide range of marine environments, from Arctic to Antarctic regions to tropical seas, but is more commonly documented in temperate or cooler coastal waters. Scientists have proposed dividing the global population into races, subspecies, or possibly even species.
🦴 2. Anatomy & Morphology
The male's dorsal fin rises to a height of 1.8 m, and using ultrasonic sonar emitted through the 'melon' organ in its forehead, it can scan even the internal skeleton of its prey.
🔍 3. Ecology & Behavior
Pods display remarkable cooperative intelligence, generating artificial waves to wash seals off ice floes or subduing great white sharks.
🇰🇷 4. Connection to Korea
Migrating killer whale family pods are also occasionally observed along the coasts of the East Sea and South Sea of Korea.
📚 Sources & References
- • Wikipedia “Orca”
- • Wikidata Q26843
- • IUCN Red List category DD — latest assessment at iucnredlist.org
- • species.nibr.go.kr — mainHome.do
- • Silhouette: PhyloPic — Chris Forbes · CC BY 4.0 (Congeneric silhouette — Orcinus)
Recorded dimensions are widely cited representative estimates from public literature and may vary by study or specimen.