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🧬 Biological Classification (Kingdom to Species)Dermochelys coriacea

Kingdom

Animalia

Phylum

Chordata

Class

Reptilia

Order

Testudines

Family

Dermochelyidae

Genus

Dermochelys

Species

Dermochelys coriacea

Reptilia🥩 Carnivore

Leatherback Seaturtle

Dermochelys coriacea (Leatherback Seaturtle · オサガメ)

🛡️ Conservation Status (IUCN Red List)VU (Vulnerable)

DDData Deficient

LCLeast Concern

NTNear Threatened

VUVulnerable

ENEndangered

CRCritically End.

EWExtinct in Wild

EXExtinct

🇰🇷 Marine Protected Species (Korea)

Geological Era

Extant

Diet

Carnivore

Length · Height

1.83m · No data

Mass · Top Speed

340~454kg · No data

Habitat & Fossil Locality

Open waters of the Atlantic, Pacific, and Indian Oceans (lays eggs on tropical and subtropical beaches)

💡 Everyday Comparisons for Size, Mass & Speed

💡 A weight of 454 kg equals five and a half traditional sacks of rice (80 kg each) (Comparison).
💡 According to NOAA, some Leatherback Seaturtles swim over 10,000 miles (about sixteen thousand km) in 1 year, roughly 40 times the road distance between Seoul and Busan (about 400 km) (Comparison).
💡 It is very rare in Korea: of 55 sea turtles washed ashore along Korean coasts from 2015 to 2020, only 2 were Leatherback Seaturtles.

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.

📊 Mass & Speed Index (0–100)

⚖️ Mass Index (Blue Whale ~190 t = 100, log scale)67

Site-computed relative index from recorded values; not a formal scientific metric.

#장수거북#Dermochelys coriacea

📖 1. Overview

The Leatherback Seaturtle is a large sea turtle with the widest distribution of any reptile across the Atlantic, Pacific, and Indian Oceans, feeding on jellyfish in the open ocean.

🦴 2. Anatomy & Morphology

Adults measure 5–6 feet (about 1.5–1.8 m) long and weigh 750–1,000 pounds (about 340–454 kg). Inside the mouth are pointed tooth-like projections and backward-pointing spines that hold onto slippery prey.

🔍 3. Ecology & Behavior

It feeds on soft-bodied prey such as jellyfish and salps, diving deeper than any other turtle to about 1,200 m (4,000 feet) and staying underwater for up to 85 minutes. Females come ashore on beaches at night every 2–4 years to lay eggs.

🇰🇷 4. Connection to Korea

In Korea, it is designated as a Marine Protected Species. One individual was confirmed in the waters off Jeju Island from 2013 to 2022, and 2 out of 55 sea turtle strandings in Korea from 2015 to 2020 were Leatherback Seaturtles.