In these Cetaceans the head is of vast size and excessively vaulted, or arched, especially in front.
Its general appearance is that of a Whale; it has no neck, nor any vestiges of hinder extremities, but it differs materially from the true Cetaceans in many points of its structure.
Examples are furnished by the compound stomachs of many rodents, ruminants, cetaceans and herbivorous edentates.
The three stomachs of the cetaceans are similar to those of the ruminants (Fig.
Exceptions to the general rule are furnished by some of the herbivorous Cetaceans and by the Dugong (Halicore) in whom the large intestine is twice as long as the small.
A morbid sleep, full of hallucinations, seized my whole being.
You needed to be Flemish like Conseil to accept these circumstances, living in a habitat designed for cetaceans and other denizens of the deep.
Herds of these different mammals were playing about in the tranquil waters, and I could easily see that this Antarctic polar basin now served as a refuge for those cetaceans too relentlessly pursued by hunters.
But you must admit that certain cetaceans do grow to significant size, since they're said to supply as much as 120 metric tons of oil.
But tell me, isn't that the noise cetaceans make when they spurt water from their blowholes?
Captain Nemo observed the herd of cetaceans cavorting on the waters a mile from the Nautilus.
That's why the Count de Buffon's encyclopedia says that cetaceans can live, and even must live, for a thousand years.
Old legends even claim that these cetaceans led fishermen to within a mere seven leagues of the North Pole.
Unique specimens of other cetaceans are also recorded.
This guide was designed to assist the layman in identifying the cetaceans he encountered in that area and was intended for use in two ongoing whale observer programs, NUC's Whale Watch and NMFS's Platforms of Opportunity.
Any person taking data on stranded cetaceans should follow the instructions itemized below, being careful to take measurements in the manner prescribed and to record data in as much detail as possible.
The following brief summary of major methods of tagging cetaceans is provided to acquaint the reader with markers he may expect to see in the western North Atlantic.
Similar suggestions for taking and recording data on stranded cetaceans are included in Appendix D.
Although all cetaceans may be regarded as whales, the term "whale" most commonly applies to the larger animals.
Although many species of cetaceans are characterized by changes in color pattern with age, individuals occasionally differ radically in their coloration from their fellows (App.
Appendix D provides guidelines for collecting data on stranded cetaceans and provides forms and specific instructions for taking standard measurements.
To these and to all who use this guide to further help knowledge about the cetaceans of the western North Atlantic, we are grateful.
In preparing this guide we drew freely from the literature on cetaceans of this region and supplemented it with our own observations and with unpublished notes provided by our colleagues.
From there, they will be made available to scientists actively studying the cetaceans of a given species or geographical area.
These poor cetaceans have been so hunted that they have become very rare in the Amazon and its affluents, and so little time is left them to grow that the giants of the species do not now exceed seven feet.
The ubas approached, the harpoons were thrown at the same instant; one missed its mark, but the other struck one of the cetaceans near his tail.
Two of these herbivorouscetaceans had just been signaled in the black waters of the Cayaratu, which comes in at Fonteboa.
Even in the Eocene strata of Europe, the discovery of Cetaceanshas never kept pace with that of land quadrupeds.
Nor have we yet any connecting links between the great marine reptiles and the Cetaceans and Sirenians which in the Tertiary take their place in the sea.
The forms into which they developed were certainly every whit as large as any ever seen on the surface of this planet, but not, as I have already shown, appreciably larger than those of the biggest cetaceans known to science in our own time.
Now, the fact as to the comparative size of our own cetaceans and of 'geological' animals is just this.
The last family of existing cetaceans is the above-mentioned Delphinidae, which includes the true dolphins, porpoises, grampuses and their relatives.
Among the dolphin group the narwhal and the white whale, or beluga, are distinguished from all other cetaceans by the great comparative length of their cervical vertebrae, all of which are completely free.
In size cetaceans vary much, some of the smaller dolphins scarcely exceeding 4 ft.
Assuredly, the cetaceans being mammals, it entered into the plan of their structure to have four limbs like the others, and consequently a pelvis to sustain their hind legs.
The cetaceans breathe like ourselves, and are obliged to come to the surface of the water to take air; while fishes have a special apparatus, which I will explain to you presently, which enables them to breathe in the water.
Most tortoises are aquatic, and, as divers, leave the cetaceans far behind.
There is nothing remarkable in the digestive apparatus of the cetaceansexcept about the mouth, which is, as you know, the essentially variable point among animals.
The cetaceans remain under water for half an hour at a time without seeming to suffer in the least; and Breschet, a clever French naturalist, has given a very satisfactory explanation of this wonderful faculty.
Cetaceans are whales; and if I had been consulted on the matter, I should have joined this order and the last together, under whatever name was thought most appropriate.
All blubber-bearing cetaceans yield large quantities of oil, which is to be obtained by a process known amongst whalers as "trying out.
Many of the less frequented bays and harbours in our colonial possessions are frequented by whales and cetaceans of various kinds; and we have seen exciting chases even within the limits of the anchorage in Table Bay.
Now the remains of cetaceans in the Suffolk crag have been discovered in such enormous quantities, that many thousands a-year are made by converting them into manure.
The family of herbivorous Cetaceans are connected with the Pachydermata of the land by one of the most wonderful of all the extinct creatures with which geologists have made us acquainted.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "cetaceans" in a variety of sentences. We hope that you will now be able to make sentences using this word.
