Scientist Protects Rare Tree-Climbing Crocodiles in Ivory Coast

Deep in the rainforests of Côte d'Ivoire, one scientist is rewriting what we know about crocodiles while racing to protect Africa's rarest species.

Christine Kouman has dedicated more than 10 years to studying the West African slender-snouted crocodile, a critically endangered reptile that climbs trees and has never been known to attack humans. Working in the remote Taï National Park, she's discovered behaviors that set this gentle giant apart from its more aggressive cousins.

"I still have all my fingers and my toes," Kouman jokes about her hands-on work with the species. The biggest crocodile she's caught measured nearly 9 feet long, yet these forest dwellers are surprisingly docile, feeding mainly on fish and tiring quickly when handled.

Kouman's research has revealed fascinating adaptations to rainforest life. Without open riverbanks for sunbathing, these crocodiles bask on rocks and fallen tree branches jutting from the water, showing an impressive ability to climb. They're also strategic neighbors, sharing river territory with other crocodiles but timing their movements to avoid conflict.

Through her conservation group EBURCO, Kouman tagged 26 individual crocodiles to track their movements and social behaviors. Her findings show they have smaller home ranges than saltwater or Nile crocodiles, preferring to stay near vegetation-covered areas where falling fruit attracts fish.

Why This Inspires

Kouman's passion stems from a lifelong commitment to protecting overlooked creatures. The slender-snouted crocodile and its Upper Guinean Forest habitat qualify as both neglected and critical to preserve.

Her work faces real challenges. She hauls all supplies into remote areas, sets up field camps from scratch, and spends long nights on river boats tracking her subjects. The biggest threat now comes from outside the park: since 2019, mining activity has turned the once-crystal-clear Hana River muddy and undrinkable.

Despite these obstacles, Kouman continues collaborating with park authorities to strengthen protections for Taï National Park. "If you want them to thrive, you need to keep the forest as it is — well protected," she says.

Her dedication shows how one scientist's commitment to the overlooked can make all the difference for an entire species' survival.