Source and Additional Information

Animal Diversity Web
 
Michael S. Joo
Some rights reserved

Eastern grey kangaroos are a social species and usually live in small groups called 'mobs'. These 'mobs' include one dominant male, about 2-3 females with their young, and about 2-3 young males. As is common in all kangaroos, eastern greys move by hopping, usually around 9 meters every hop. Also characteristic of most kangaroos, the legs of eastern greys are designed so that they expend less energy the faster they are moving, which can be up to speeds of 30 miles per hour. Eastern grey kangaroos spend most of their day under the shade, then move out at dusk to feed until dawn. ("Lamington National Park", 2003; BBC, 2004; McCarron et al., 2001; Poole, 1982; Strahan, 1995)

Home Range

Eastern grey kangaroos do not have a broad home range like Macropus fuliginosus, which can have ranges in upwards of 500 ha. On average, eastern grey kangaroos have a mean home range of about 42.9 ha, but this value can range about 29.2 ha above and below this point. Density dependence and the availablity of renewable resources may be the determining factors that limitg the range of eastern grey kangaroos. ("Australian Wildlife", 2002; Grice et al., 1988; Moore, Coulson, and Way, 2002)

Communication and Perception

Source and Additional Information

Animal Diversity Web
 
Michael S. Joo
Some rights reserved

Both male and female eastern grey kangaroos usually communicate with each other and their young using clucking noises. When alarmed, they can also emit a guttural cough. This cough is also heard when males warn each other, fight, or display dominance. All grey kangaroos stamp their hind legs on the ground when they sense danger. This stamping, along with the guttural noise, sends a warning that travels quite distantly. ("San Francisco Zoo", 2004; Moore, Coulson, and Way, 2002; Poole, 1982)