- · Grid units represent actual meters (m); human and animals are drawn to the exact same scale with original silhouette aspect ratios preserved.
- · When a size range is recorded (e.g. 1–1.6m), the lower bound is used for scale comparison.
- · Gold-spotted Pond Frog silhouette: PhyloPic — Luca Leicht · CC BY 4.0 (Pelophylax)
- · Human silhouette: PhyloPic — NASA · Public Domain Mark 1.0
Gold-spotted Pond Frog
Pelophylax chosenicus (Gold-spotted Pond Frog · チョウセンプランシーガエル)
🇰🇷 Class II endangered wildlife (Korea)
💡 Everyday Comparisons for Size, Mass & Speed
- 💡 Its body length of 6 cm is slightly more than twice the diameter of a Korean 500-won coin (about 2.65 cm) (Comparison).
- 💡 At Okgu Park in Siheung-si, Gyeonggi-do, a restoration project released 300 Gold-spotted Pond Frogs captive-bred by Seoul Grand Park in two rounds, in August 2024 and June 2025, into an urban park wetland.
- 💡 Because this frog lives in rice paddies and agricultural ditches, the National Institute of Ecology explains that its habitat disappears as farmland shrinks and pesticides are used.
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.
📖 1. Overview
The Gold-spotted Pond Frog is a frog endemic to Korea with two golden dorsolateral ridges along its back. It is Class II endangered wildlife (Korea) and listed as Vulnerable (VU, 2021) on the IUCN Red List.
🦴 2. Anatomy & Morphology
Two distinct brown-and-gold ridges running from behind the eyes along both sides of the back distinguish it from the Black-spotted Pond Frog, which has three lines, and its belly is mostly yellow or gold. Females are 2–3 times larger than males.
🔍 3. Ecology & Behavior
Emerging from hibernation in April, it attaches eggs to aquatic plants or plant debris from May to July, and readily eats flies, bees, mole crickets, and spiders as well as occasional Japanese rice fish or frogs. Around October it burrows into rice-paddy banks or levees to hibernate.
🇰🇷 4. Connection to Korea
Designated as Class II endangered wildlife (Korea), it was once thought to live throughout South Korea but is now confirmed only in parts of Seoul, Incheon, Gyeonggi-do, Chungcheong-do, Gangwon-do, and Jeolla-do. The National Institute of Ecology, together with Seoul Grand Park, released 300 captive-bred individuals each in August 2024 and June 2025 at Okgu Park in Siheung-si, Gyeonggi-do.
📚 Sources & References
- • IUCN Red List VU (2021) — https://www.iucnredlist.org/species/58577/110101963
- • 멸종위기 야생생물 Ⅱ급 — 국가생물종목록(국립생물자원관) ktsn 120000164710 — https://species.nibr.go.kr/home/mainHome.do?cont_link=009&subMenu=009002&contCd=009002&ktsn=120000164710
- • IUCN Red List category VU — latest assessment at iucnredlist.org
- • Korean protection status: Class II endangered wildlife (Korea)
- • catalogueoflife.org — 76CHN
- • iucnredlist.org — 110101963
- • 국가생물종목록(국립생물자원관) ktsn 120000164710 — https://species.nibr.go.kr/home/mainHome.do?cont_link=009&subMenu=009002&contCd=009002&ktsn=120000164710
- • wikidata.org — Q607461
- • nie.re.kr — view.do
- • species.nibr.go.kr — mainHome.do
- • nie.re.kr — view.do
- • nie.re.kr — view.do
- • Silhouette: PhyloPic — Luca Leicht · CC BY 4.0 (Congeneric silhouette — Pelophylax)
Recorded dimensions are widely cited representative estimates from public literature and may vary by study or specimen.