Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Vertebrates > Mammals
|
Buy Now
Development of the Cetacean Nasal Skull (Paperback, 1999 ed.)
Loot Price: R5,770
Discovery Miles 57 700
|
|
Development of the Cetacean Nasal Skull (Paperback, 1999 ed.)
Series: Advances in Anatomy, Embryology and Cell Biology, 149
Expected to ship within 10 - 15 working days
|
Morphogeny of the nasal skull was investigated in 92 embryos of 13
species of Cetacea. Compared to the original nasal capsule of land
mammals, the nasal structures of Cetacea show many weighty
transformations. As a result, the nostrils are translocated from
the tip of the snout to the vertex of the head. Several structures
of the embryonic nasal skull remain preserved even in adult
cetaceans. The translocation of the nostrils to the highest point
of the surfacing body is among the most perfect adaptations of
cetaceans to the aquatic life habits. The morphogeny of the nasal
skull suggests that all cetaceans are of common origin and form a
single monophyletic order. The hitherto usual division of this
order into two suborders, Mysticeti and Odontoceti, appears to be
unsubstantiated. Rather, at least three closely related
superfamilies should be distinguished within the order Cetacea,
viz., Balaenopteroidea, Physeteroidea, and Delphinoidea. The
results are in a
General
Is the information for this product incomplete, wrong or inappropriate?
Let us know about it.
Does this product have an incorrect or missing image?
Send us a new image.
Is this product missing categories?
Add more categories.
Review This Product
No reviews yet - be the first to create one!
|
|
Email address subscribed successfully.
A activation email has been sent to you.
Please click the link in that email to activate your subscription.