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.
Species: cinereus. Size and weight: Koalas average 27-36 in (70 to 90cm) in length and weigh anywhere from 9 to 20 lbs (4-9 kg). Females tend to be both slightly smaller and slightly less heavy than males.Southern koalas are approximately 30% larger than their northern counterparts.pecies: cinereus. Size and weight: Koalas average 27-36 in (70 to 90cm) in length and weigh anywhere from 9 to 20 lbs (4-9 kg). Females tend to be both slightly smaller and slightly less heavy than males.