Pecan "fruit of the walnut". They noted the particularly thin shell and acorn-like shape of the fruit, indicating they were indeed referring to pecans. The Spaniards took the pecan into Europe, Asia, and Africa beginning in the 16th century. In 1792, William Bartram reported in his botanical book, "Travels", a nut tree, "Juglans exalata" that some botanists today argue was the American pecan tree, but others argue was hickory, "Carya ovata". Pecan trees are native to the United States, and writing about the pecan tree goes back to the nation's founders. Thomas Jefferson planted pecan trees, "C. illinoinensis" (Illinois nuts), in
Tree-kangaroo They are expert leapers; downward jumps from one tree to another have been recorded and they have the extraordinary ability to jump to the ground from or more without being hurt. The main diet of the tree-kangaroo is leaves and fruit that it gathers from the trees, but occasionally scavenged from the ground. Tree-kangaroos will also eat grains, flour, various nuts, sap and tree bark. Some captive tree-kangaroos (perhaps limited to New Guinea species) eat protein foods such as eggs, birds and snakes, making them omnivores. Little is known about the reproduction of tree-kangaroos in the wild. The only published