Echidna: Extraordinary Egg-Laying Mammal (Australian Natural by Michael Augee, Brett Gooden, Anne Musser PDF

By Michael Augee, Brett Gooden, Anne Musser

ISBN-10: 0643092048

ISBN-13: 9780643092044

ISBN-10: 0643093044

ISBN-13: 9780643093041

The echidna is likely one of the world’s so much awesome creatures. it's a residing fossil whose kin have been jogging the earth over a hundred million years in the past. just like the platypus, it's a mammal that lays eggs. And, like any mammals, it has fur and produces milk. This publication describes the echidna’s way of life and the diversifications that experience made it such a success. It attracts at the most recent examine into those unfamiliar beings, masking their evolution, anatomy, senses, copy, behaviour, feeding behavior and metabolism. The authors demonstrate a few attention-grabbing new findings, displaying how echidnas are masters in their surroundings, and never easily a few type of mammal ‘test version’ that went flawed. a last bankruptcy on conservation contains info on captive vitamin and administration.

Show description

Read Online or Download Echidna: Extraordinary Egg-Laying Mammal (Australian Natural History) PDF

Similar mammals books

Get Conservation of the Black-Tailed Prairie Dog: Saving North PDF

The prairie puppy is a colonial, keystone species of the grassland surroundings of western North the USA. Myriad animals on a regular basis stopover at colony-sites to feed at the grass there, to exploit the burrows for protect or nesting, or to prey at the prairie canines. regrettably, prairie canine are disappearing, and the present quantity is just approximately 2% of the quantity encountered by means of Lewis and Clark within the early 1800s.

New PDF release: Mammals of the Pacific Northwest: From the Coast to the High

This notable ebook bargains an intimate examine the lifestyles histories and habitats of mammals within the Pacific Northwest, from the coast to the excessive Cascades. for every species of mammal, the ebook presents a actual description and distinctive info on distribution, habitat, and behaviour. Over a hundred photographs.

Download e-book for kindle: A Laboratory Guide to the Mammalian Embryo by David K. Gardner, Michelle Lane, Andrew J. Watson

This publication pulls jointly the complete variety of phone tradition, biochemical, microscopic, and genetic recommendations to check the early mammalian embryo. previously, there hasn't ever been this type of accomplished compendium, notwithstanding there were extra centred books of protocol, comparable to Manipulating the Mouse Embryo, from chilly Spring Harbor.

Extra info for Echidna: Extraordinary Egg-Laying Mammal (Australian Natural History)

Sample text

Abbreviations: av = anterior surface of the vitreous humour, ch = choroid, cp = ciliary process, i = iris, l = lateral limit of the cornea, m = rectus muscle, os = ora serrata retinae (the anterior limit of the retina), r = retina, s = sphincter, sc = scleral cartilage (black), sf = fibrous layer of sclera, sl = suspensory ligament.

In the echidna it terminates at the level of the 7th thoracic vertebra whereas in the human it ends between lumbar vertebrae 1 and 2. It has been suggested that this shorter length in the echidna allows it to roll up into its hyperflexed defensive posture without over-stretching the spinal cord. A greater proportion of the stretching is presumably taken up by the possibly more resilient sheaf of nerve roots of the cauda equina which radiate from the distal end of the spinal cord. The arrangement of the nerve cells in the echidna’s spinal cord is similar to eutherian mammals.

In both monotreme families the skull bones fuse together early in life, obliterating or obscuring suture lines. This makes the task of identifying the skull bones difficult and has led to some confusion in the identification of the component skull bones. The dorsal and lateral sides of the skull roof bear scars for the origin of wide, strap-like muscles that run posteriorly from the skull to insert onto the Skeletal anatomy 39 shoulder, helping to give echidnas a somewhat neckless appearance. The zygomatic arches are thin and weak due to the reduction of the musculature required for chewing.

Download PDF sample

Echidna: Extraordinary Egg-Laying Mammal (Australian Natural History) by Michael Augee, Brett Gooden, Anne Musser

by Donald

Rated 4.92 of 5 – based on 15 votes