Museum of Osteology
10301 South Sunnylane Rd.
Oklahoma City, OK 73160
The family Felidae is comprised entirely of cats. There are approximately 41 species found throughout the world. Cats possess some impressive traits for hunting. Good vision, sharp retractable claws, and long slender canine teeth help to make cats some of the most effective predators in nature.
There are many species of flightless birds ranging from rails to penguins to the ostrich. Flightless birds evolved from birds that could fly but in areas where flight was not needed for survival. Flightless bird’s bones are more dense and heavier than flighted birds. With the exception of penguins, which have adapted to “flying” through the water, most flightless birds lack a keeled sternum for flight muscle attachment. These skeletal adaptations, along with the absence of flight feathers, permanently ground these birds.