The mammals alive today can be traced back to their origins in the late Paleoziec period. Marsupials are an infraclass of mammals that primarily inhibit South America and Australia. Marsupials are one of the three remaining extant of mammals and has many mammalian characteristics. Molecular data suggests that marsupials are an extant mammal clade from the mammal sub-class; Theria (Van Rheede et al, 2006). Marsupials belong to the Metatheria clade and emerged during the Cretaceous period. They dominate the mammalian wildlife in Australia and predominantly inhabit the southern hemisphere, apart from one species inhabiting North America. Marsupials have 280 extant species (No-wak 1991). They are separated into two separate cohorts; Ameridelphia and Australidelphia. Common marsupials include; kangaroos, koalas, wombats and possums. They are characterised by their distinct pouch, in which they carry their young.
Marsupials have evolved, along with placental mammals, from Therian mammals. Molecular data suggests that Marsupials separated from Eutherian (placental) mammals approximately 90 million years ago. Australia is the main habitat for marsupials, however there are some in South and North America. As Australia separated from…
Habitat: highest branches of eucalyptus trees, known as the gum tree.
In Aborigine language, the word “koala” means “no water”.
Koalas are nocturnal marsupials famous for spending most of their lives asleep in trees. During the day they doze, tucked into forks or nooks in the trees, sleeping for up to 18 hours.
This sedentary lifestyle can be attributed to the fact they have unusually small brains and survive on a diet of nutrient-poor leaves.
When not asleep a koala feeds on eucalyptus leaves,…
It shows how the past and
present geographical distribution
of organisms played a role in
their evolution.Also, how species
are distributed in accordance to
the genetic relationships they
share with other organisms.
Marsupials and Placental Mammals
Marsupials animals are almost exclusively
found in Australia, while Placental mammals
are very rare there. There are fossils of
marsupials in North America, and South
America. 30 million years ago South America
The David Fleay Wildlife Park Applied Theatre Project, uses Theatre in Education through roving theatre, interactive performance and a post-performance workshop for young children. This will take place at David Fleay’s Wildlife Park in Burleigh Heads, Gold Coast over five days during a week of the September school holidays.
The purpose of this work is to educate young children about why it is important to preserve Australia’s native flora and fauna, why it is in danger, and what they themselves…
Since finally breaking away from Antarctica and South America approximately 55 million years ago, Australia’s animals have evolved in isolation under the influence of a number of major climatic changes. As a result of this, the Australian continent today contains a diverse and unique collection of fauna vastly different to that found elsewhere in the world. Unfortunately, Australia’s unique biodiversity today faces new and potentially devastating threats, a consequence of a number of…
Monotremes have small hatchlings that rely on lactation milk as a nutritional source. Eutherians, the mammalian line that evolved placenta resulting in intrauterine development, have young that heavily rely on milk. The milk in Eutherians does not change through a young’s development and its composition is constant. Marsupials, in comparison to Monotremes and Eutharians, have one of the most complicated and specific lactation systems. Their milk is constantly changing in order to better cater to…
*They diverged from the mammalian lineage leading to eutherian (placental) mammals by the Middle Cretaceous. *Marsupials are characterized by giving birth to immature young ones.Females of most species possess a front pouch called marsupium which contains multiple nipple in which immature young ones are sheltered andnourished. Marsupium provides protection and…
Red Kangaroo Research Paper
They’re marsupials. Known for their pockets that their joeys stay in, and for their amazing capability of jumping high. The red kangaroo can in fact do both of these things, but has far more interesting features. This species of kangaroo can live in a wide range of habitats, its evolutionary history goes far back, it has amazing adaptations, has close relatives, and have been impacted by humans.
The red kangaroo is among one of the many species of…
otherwise called gills. Another similar characteristic all members of the chordate phylum have is a notochord which runs underneath the nerve and helps support it. They also have a dorsal nerve chord, this is a bunch of nerves that run from your organs and mussels connecting them into your brain. All of the phylum Chordata have a post-anal tail at some point in their life, humans have it as an embryo whereas the thylacine has it their whole life. Animal Diversity Web. (2016). Dasyuromorphia…
In the central Kimberley the dominant features are savanna woodlands, with sparse acacia scrub land and spinifex savanna in the south. Boabs are one of Broome’s most common plants. They grow along the Kimberley coast and show a great tolerance to salt given that they are all up the coast and often found almost down to the water’s edge. In coastal areas with strong winds, the Boabs may be somewhat stunted in growth.
Fauna - Broome and the Kimberley are home to a wide range of diverse members of…