aÂ·mendÂ·ment. n. 1. The act of changing for the better; improvement: Society may sometimes show signs of repentance and amendment (George G. Coulton). 2.
While several species are relatively well known, the plumed guineafowl and the two members of the genus Agelastes remain relatively poorly known. These large birds measure from 40â71 cm (16â28 inches) in length, and weigh 700â1600 grams or 1.5-3.5 pounds.
Africaâs white rhino species is the largest of any living rhinoceros, weighing up to 3,600 kilograms (7,920 pounds), and is the continentâs third-largest species after the African bush elephant and African forest elephant. The black rhino, which is not actually black, can weigh up to 1,400 kg (3,100 pounds). Horns of the African rhino weigh on average 1.5-3.0 kilograms (3.3-6.6 pounds), with white rhino having the heaviest front horn which on average weighs 4.0 kilograms (8.8 pounds). Horns of the Asian rhino species are substantially smaller, averaging 0.27 kilograms (0.59 pounds) to 0.72 kilograms (1.58 pounds) (page 3).