🪐 View in 3D Galaxy 📏 View on 3D Scale Stage

🧬 Biological Classification (Kingdom to Species)Actinia equina

Kingdom

Animalia

Phylum

Cnidaria

Class

Hexacorallia

Order

Actiniaria

Family

Actiniidae

Genus

Actinia

Species

Actinia equina

Hexacorallia🌊 Marine predator / filter feeder

Beadlet anemone

Actinia equina (Beadlet anemone · ウメボシイソギンチャク)

🛡️ Conservation Status (IUCN Red List)NE (Not Evaluated)

Not Evaluated (NE) on the IUCN Red List yet.

Geological Era

Extant

Diet

Marine predator / filter feeder

Length · Height

3~4cm · 6~8cm

Mass · Top Speed

0.4g · No data

Habitat & Fossil Locality

Intertidal rocks and tide pools along Atlantic, Mediterranean, and Pacific coasts (down to 20 m depth)

💡 Everyday Comparisons for Size, Mass & Speed

💡 Its body column diameter of 3–4 cm is slightly larger than the diameter of a Korean 500-won coin (about 2.65 cm) (Comparison).
💡 Its average dry weight of 0.42 g is about 1/140 the weight of a single chicken egg (about 60 g) (Comparison).
💡 Substances produced by cells inside its body have antibacterial properties and are being studied for potential use in medicine or plant protection (ADW).

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)2

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

#해변말미잘#Actinia equina

📖 1. Overview

The beadlet anemone is a red sea anemone living in clusters in rocky tide pools along the seashore. Out of the water, it retracts its tentacles and looks like a small red blob.

🦴 2. Anatomy & Morphology

Its body is divided into tentacles, a body column, and a wide pedal disc that attaches to rocks. It has up to 192 tentacles with wart-like blue spots beneath them; body color varies from green to red, with reddish-brown being most common.

🔍 3. Ecology & Behavior

Using nematocysts (stinging cells) on its tentacles, it paralyzes and eats almost anything it can catch, including bivalves, insects, and crustaceans. It is the only sea anemone known to brood its young inside its body before giving birth, and it also reproduces by dividing its body.

🇰🇷 4. Connection to Korea

It is listed in the National List of Species of Korea, living mainly along the South Sea coast and occasionally found along the East Sea coast. It has been recorded from Jeju Island (Seogwipo, Marado), Mipo, Dangsa, Hongdo, Sohwado, and Dokdo.