Cardiac tamponade occurs when too much fluid collects in the pericardium (the sac around your heart). The fluid may collect slowly or quickly, and puts pressure on your heart. This makes it difficult for your heart to pump. Cardiac tamponade can be life-threatening. Infection or inflammation.
Physical Characteristics. Males of the largest kangaroo species, the red kangaroo, can be up to 6 feet tall and weigh 200 pounds.In all species, females are smaller than males. Male red kangaroos have a maroon-colored coat; female red kangaroos are bluish-gray, which has earned them the nickname blue flyers..ales of the largest kangaroo species, the red kangaroo, can be up to 6 feet tall and weigh 200 pounds. In all species, females are smaller than males.
How Kangaroos Move. Efficient hoppers, kangaroos consume less energy the faster they move. Ingram Publishing/Ingram Publishing/Getty Images. One of the distinguishing features of the kangaroo, the most prominent of Australiaâs endemic marsupials, is its dominant means of locomotion.Because they are incapable of moving one leg independently of the other, kangaroos propel themselves across grasslands and maneuver through wooded areas by hopping on both feet.ifestyle. Kangaroos do most of their moving about between dusk and dawn, which is when they forage for the grasses. In the daytime, kangaroos generally relax in the shade, though red kangaroos are sometimes active during hours of sunlight.