Chimpanzees, despite sharing DNA sequences with humans, face hindrances in swimming due to their bulky bones. Occasionally, they enjoy shallow water dips but are at risk of tragic outcomes in deep water.
Tortoises, with their limbs designed for land rather than water, face challenges when it comes to swimming due to their heavy shells and lack of physical evolution for aquatic environments.
Spending 16 hours a day in water, hippos rely on aquatic environments for cooling off and protecting their sensitive skin. These hefty creatures, despite their size, aren't strong swimmers. Their heavy bodies and dense bones make swimming a challenge. Instead of swimming, hippos move by walking on the bottom of water bodies.