Cardiac tamponade is pressure on the heart that occurs when blood or fluid builds up in the space between the heart muscle (myocardium) and the outer covering sac of the heart (pericardium). Alternative Names: Tamponade; Pericardial tamponade.
Koala Physical Characteristics. The koala is an arboreal (tree dwelling) herbivorous (plant eating) marsupial. Earlier European settlers had incorrectly labeled the koala as being a bear. Koalas do not live in the rain forests or in deserts. They live in tall eucalypt forests and low eucalypt woodlands.oala Physical Characteristics. The koala is an arboreal (tree dwelling) herbivorous (plant eating) marsupial. Earlier European settlers had incorrectly labeled the koala as being a bear. Koalas do not live in the rain forests or in deserts. They live in tall eucalypt forests and low eucalypt woodlands.
Koalas living in the southern parts have adapted to the colder climate. They are larger and have thicker, grey coloured fur. Koalas from the warmer northern areas are more a browny colour and smaller. Koalas reach a maximum length of about 24 â 34 inches (60 â 85cm). An adult male koala can weigh between 17 â 30 pounds (8-14 kilograms) and a female between 13 â 25 pounds (6 - 11 kilograms). They have a life span of between 12 and 15 years.