By David E. Fastovsky, David B. Weishampel, John Sibbick

Definitely the right textbook for non-science majors, this full of life and fascinating advent encourages scholars to invite questions, verify information severely and imagine like a scientist. construction at the good fortune of the former variations, Dinosaurs has been reorganised and widely rewritten in line with teacher and scholar suggestions. It maintains to make technology available and appropriate via its transparent reasons and vast illustrations. up to date to mirror contemporary fossil discoveries and to incorporate new taxa, the textual content publications scholars during the dinosaur teams, emphasising clinical strategies instead of proposing unending proof. it really is grounded within the universal language of contemporary evolutionary biology - phylogenetic systematics - in order that scholars study dinosaurs as expert paleontologists do. the main rising topic of feathered dinosaurs, and the various implications of feathers, were built-in through the booklet, highlighted by way of the inclusion of beautiful new images during this fantastically illustrated textual content, now in complete color all through.

Show description

Read or Download Dinosaurs - A Concise Natural History PDF

Similar zoology books

Zoology in Early Modern Culture: Intersections of Science, Theology, Philology, and Political and Religious Education (Intersections: Interdisciplinary Studies in Early Modern Culture, Volume 32)

This quantity attempts to map out the interesting amalgam of other, partially conflicting methods that formed early sleek zoology. It demonstrates that theology and philology performed a pivotal position within the complicated formation of this new technology.

Peacemaking among Primates

Does biology condemn the human species to violence and warfare? earlier reviews of animal habit incline us to reply to definite, however the message of this booklet is significantly extra positive. with out denying our history of competitive habit, Frans de Waal describes strong exams and balances within the make-up of our closest animal family, and in so doing he exhibits that to people making peace is as ordinary as making conflict.

Additional info for Dinosaurs - A Concise Natural History

Sample text

All organfur- or hair-bearing isms characterized by shared, derived characters are linked by the cladogram into monophyletic groups. 8. A cladogram showing humans within the larger group Mammalia. Mammalia tributions in nature, the cladogram documents is diagnosed by warm-bloodedness and possession of fur (or hair); many other monophyletic groups within larger monophyletic characters unite the group as well. Carnivora, a group of mammals that includes bears groups. 8, a small part of the hierar- and dogs (among others) is shown to complete the cladogram.

In (b), the bird has to lose ancestral mammary glands and it has to replace fur with feathers. In (a), wings must be invented by evolution twice. Cladogram (a) is the simpler of the two because it requires fewer evolutionary events or steps. It is uncomplicated by the addition of more characters. In contrast to cladogram (a), the addition of virtually any other characters that are shared by humans and bats to cladogram (b) (for example, the arrangement, shape, and number of bones, particularly those in the skull and forelimbs, the structure of the teeth, the biochemistry of each organism) requires that each of these shared characters evolved independently: once in bats and once in humans.

8. 8 still hold, even with the new organism added. The cladogram is likely correct. How to read evolution in the cladogram We identified monophyletic groups using derived characters, and that the hierarchies of characters designate hierarchies of groups. 9, the distribution of shared, derived characters suggests that humans and gorillas are more closely related to each other than either is to a bear. It also suggests that all three are more closely related to each other than they are to something that does not possess the derived character of bearing fur or hair.

Download PDF sample

Rated 4.22 of 5 – based on 39 votes