Chemotherapy may cause fatigue and anemia, which may also lead to cognitive problems, particularly with the ability to pay attention. In addition, a survivor can experience other conditions that cause cognitive changes that may or may not be related to cancer or treatment.
There are currently 16 species of rock wallaby. Physical description. Rock wallabies specialise in rugged terrain and have modified feet designed to grip rock with skin friction rather than dig into soil with large claws.
Kangaroos, on the other hand, can grow to heights of 8 feet (2.1 meters) and weigh as much as 200 pounds (91 kg) [source: Microsoft Encarta]. Another simple way to tell a wallaby and a kangaroo apart is by their coloring. A wallaby's coat is usually brighter with two to three different colors.