Serrated Hinged Terrapin

Fascinating facts about the Serrated Hinged Terrapin

• A single female can lay between seven and 25 eggs, and she buries them as far as 500 m (1,600 ft) from the nearest water; hatchlings appear in March-April.
• With a straight carapace length that can reach 55 cm (22 in), it is the biggest member of its genus, and the size gap between the sexes is clear, females outgrow males, while males sport slightly longer tails, a subtle clue for field researchers.
• When threatened, the terrapin snaps its hinged plastron shut to seal in the head and forelimbs, then releases a foul odor, a two-step defense that lets it stay hidden in the murky lakes and rivers where it lives.
• You might spot it basking not just on logs or rocks, but perched on the backs of sleeping hippopotami, a quirky perch that lets the turtle soak up sun while hitching a ride on a much larger river resident.
• Its range stretches across thirteen African countries, from the wetlands of Botswana to the rivers of Ethiopia, highlighting how a single species can thrive in a wide tapestry of tropical freshwater habitats.

At a glance

About the Serrated Hinged Terrapin

The serrated hinged terrapin, Pelusios sinuatus, commands attention as the largest member of its genus, boasting a straight carapace that can stretch to 55 cm (22 in). Females outsize the males, while the males are set apart by slightly longer tails. Its most distinctive feature is a hinged plastron that snaps shut to shield the head and forelimbs, and when threatened, the terrapin releases a foul odour that adds an unexpected layer to its defensive arsenal. In the shimmering tropical lakes and winding rivers of East and Southern Africa, spanning Botswana, the Democratic Republic of the Congo, Ethiopia, Kenya, Malawi, Mozambique, Namibia, Somalia, South Africa, South Sudan, Tanzania, Zambia, and Zimbabwe, this reptile can often be seen basking on logs, rocks, mud banks, or even the backs of sleeping hippopotami, a behavior that hints at a bold comfort with the continent’s megafauna. Its diet is a modest yet varied affair of water snails, soft-weed and insects, reflecting a flexible foraging strategy that supports its broad distribution. Reproduction peaks between October and January, when females lay clutches of seven to twenty-five eggs up to 500 m (1,600 ft) from water, with hatchlings emerging in the rains of March and April, ready to navigate the same waterways that have sustained their lineage for centuries, and

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