Heosemys grandis
Silhouette: SeismicShrimp · PhyloPic
In 3 days ~30% in a week ~60%
The giant Asian pond turtle (Heosemys grandis) inhabits rivers, streams, marshes, and rice paddies from estuarine lowlands to moderate altitudes (up to about 400 metres (1,300 ft)) throughout Cambodia and Vietnam and in parts of Laos, Malaysia, Myanmar, Thailand, and India.
Slight variations in coloration can be seen among the species. The carapace of the giant Asian pond turtle has a brown to black coloration with a distinct ridge along the center while the plastron is yellow in color. The head is gray to brown in color.
Capable of living in water or on land the giant Asian pond turtle can be located along bodies of water such as lakes, ponds, rivers, streams, and canals. The giant Asian pond turtle is omnivorous and finds food in both aquatic and terrestrial environments. Their diets consist of worms, larvae, insects, snails, deceased animals, and aquatic and terrestrial plants. Similarly to other species of turtles, the giant Asian pond turtle has developed adaptations and different techniques for capturing prey in both types of environments.
The main area of concern is the illegal capture and export of these turtles... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 2 | Khao Yai National Park | 🇹🇭 Thailand |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Kadoorie Farm and Botanic Garden | 🇭🇰 Hong Kong SAR China | |
| 2 | Songkhla Zoo | 🇹🇭 Thailand | |
| 3 | National Zoo of Malaysia | 🇲🇾 Malaysia | |
| 4 | ZooTampa | 🇺🇸 United States | |
| 5 | Saigon Zoo and Botanical Gardens | 🇻🇳 Vietnam | |
| 6 | Taiping Zoo | 🇲🇾 Malaysia | |
| 7 | 黔灵山动物园 | 🇨🇳 China | |
| 8 | A Cupulatta | 🇫🇷 France | |
| 9 | Bioparc Fuengirola | 🇪🇸 Spain | |
| 10 | Farm in the City | 🇲🇾 Malaysia | |
| 11 | Penang Bird Park | 🇲🇾 Malaysia | |
| 12 | Entopia | 🇲🇾 Malaysia | |
| 13 | Aquarium Barcelona | 🇪🇸 Spain | |
| 14 | Snake Farm of Queen Saovabha Memorial Institute | 🇹🇭 Thailand | |
| 15 | Singapore Oceanarium | 🇸🇬 Singapore | |
| 16 | Maritime Aquarium at Norwalk | 🇺🇸 United States | |
| 17 | Pata Zoo | 🇹🇭 Thailand | |
| 18 | World Aquarium | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Giant Asian Pond Turtle sighting in Khao Yai National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 32nd most-seen of the 46 reptiles we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
January and February
In those months about 20% of wildlife watchers report a Giant Asian Pond Turtle in Khao Yai National Park on a given day, against under 5% in May–June and September–November, the lowest months. Those are among Khao Yai National Park's driest months, with about 40 mm of rain a month against 330 mm in September.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Giant Asian Pond Turtle sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Giant Asian Pond Turtle sightings, Khao Yai National Park ranks 2nd at about 10%. The best odds are in Cat Tien National Park (Vietnam, about 20%).
GBIF citizen-science records
It is estimated from how often the Giant Asian Pond Turtle is recorded against all the reptiles logged in Khao Yai National Park (12 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
