A new study has revealed something very interesting about chimpanzees. Chimps give as much attention to their beds as humans. What all they like to flop on is stable, firm, but a compliant bed. Researchers at the University of Nevada and Indiana University found that chimps prefer the Ugandan Ironwood than other types for its firm and stable properties. Actually, chimps like to make their nests from tree species with biomechanical properties.

The wood ensures stable platform for chimps and reduce the risk of heavy fall because of breaking branches. The researchers reached at the conclusion after studying 1,844 nests. It was found that Ugandan Ironwood accounted for 73.6% of the nests. The wood was majorly used for making nests despite having only 9.6% of all the trees in the sample area. This led the scientists to figure out the exact purpose why most chimps used Ugandan Ironwood over others.

The stiffness and bending strength was the highest for the Ugandan Ironwood compared to other varieties of wood available in the sample area. Also, the distance between leaves on the branches was the smallest for Ugandan wood, in addition to the smallest leaf surface area.

These properties are the major reasons behind chimps using this wood for making their nests. The nests made of Ugandan Ironwood also have added advantages like protection from predators and pathogens as well as temperature regulation and comfort.

"Despite the fact it's relatively rare, they are saying 7 out of 10 times", said study leader David Samson. So, it could be rightly said that when it comes to comfort, chimps give as much as attention as humans do.

The structure made using Ugandan Ironwood avoids the need of adjusting posture during sleep and also prevents falls.