To give an indication of pool sizes, the European Association for Aquatic Mammals recommends that a pool for five dolphins should have a surface area of plus an additional for every additional animal, have a depth of for at least the minimum surface area and have a water volume of at least with an additional for every additional animal.

Mammals that both chew their cud ( ruminate ) and have cloven hooves can be kosher.

In 1869 Krefft brought out The Snakes of Australia and in 1871 The Mammals of Australia, both with plates.

Mammals generally do not have an equivalent organ ; the bone marrow is often both the site of hematopoiesis and B cell development.

During the Cenozoic, mammals proliferated from a few small, simple, generalized forms into a diverse collection of terrestrial, marine, and flying animals, giving this period its other name, the Age of Mammals, despite the fact that birds still outnumbered mammals two to one.

Mammals have returned to the water in at least nine separate evolutionary lineages ( Cetacea, Sirenia, Desmostylia, Pinnipedia, Ursus maritimus ( polar bear ), Kolponomos ( marine bear ), Thalassocnus ( aquatic sloth ), Enhydra lutris ( sea otter ) and Lontra feline ( marine otter )).

In 1930, while reading Wood Jones ' Man's Place among the Mammals, which included the question of why humans, unlike all other land mammals, had fat attached to their skin, Hardy realized that this trait sounded like the blubber of marine mammals, and began to suspect that humans had ancestors that were more aquatic than previously imagined.

Originally called the International Ligurian Sea Cetacean Sanctuary ( Ligurian Sea Sanctuary ), what is now known as the Pelagos Sanctuary for Mediterranean Marine Mammals is a Marine Protected Area aimed at the protection of marine mammals ( cetaceans ).

Mammals are the dominant terrestrial vertebrates of the Cenozoic.

Mammals and birds continued to be the dominant terrestrial vertebrates, and took many forms as they adapted to various habitats.

Mammals of Crete include the vulnerable Kri-kri, Capra Aegagrus Creticus that can be seen in the national park of the Samaria Gorge and on Thodorou, Dia and Agioi Pantes, ( islets off the north coast ), the Cretan wildcat and the Cretan spiny mouse.

), The Rise of Placental Mammals, Origins and Relationships of the Major Extant Clades.

Mammals such as Markhor ( wild sheep ), leopards, wolves, hyena, rabbits, wild cats and porcupines are to be found in the Quetta region.

Mammals lack the ability to introduce double bonds in fatty acids beyond carbon 9 and 10, hence ω-6 linoleic acid ( 18: 2, 9, 12 ), abbreviated LA, and the ω-3 linolenic acid ( 18: 3, 9, 12, 15 ), abbreviated ALA, are essential for humans in the diet.

* Kielan-Jaworowska & Ensom ( 1992 ), " Multituberculate Mammals from the Upper Jurassic Purbeck Limestone Formation of southern England ", Paleontology, 35, p. 95-126.

* Kielan-Jaworowska & Ensom ( 1992 ), Multituberculate Mammals from the Upper Jurassic Purbeck Limestone Formation of southern England.

* McKenna MC & Bell SK ( 1997 ), Classification of Mammals Above the Species Level.

* McKenna MC & Bell SK, ( 1997 ), Classification of Mammals Above the Species Level.

and Bell S. K., ( 1997 ), Classification of Mammals Above the Species Level.

( 2001 ), " Phylogeny and Systematics of Multituberculate Mammals ".

( 2001 ), " Phylogeny and Systematics of Multituberculate Mammals ".

* McKenna MC & Bell SK, ( 1997 ), " Classification of Mammals Above the Species Level ".

* Kielan-Jaworowska Z & Hurum JH ( 2001 ), " Phylogeny and Systematics of Multituberculate Mammals ".

* McKenna MC & Bell SK, ( 1997 ), Classification of Mammals Above the Species Level.

In addition, Risso's dolphin is covered by the Agreement on the Conservation of Small Cetaceans of the Baltic, North East Atlantic, Irish and North Seas ( ASCOBANS ), the Agreement on the Conservation of Cetaceans in the Black Sea, Mediterranean Sea and Contiguous Atlantic Area ( ACCOBAMS ), the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region ( Pacific Cetaceans MoU ) and the Memorandum of Understanding Concerning the Conservation of the Manatee and Small Cetaceans of Western Africa and Macaronesia ( Western African Aquatic Mammals MoU ).

Mammals that are likely nest predators include northern raccoons ( Procyon lotor ), domestic cats ( Felis catus ), and eastern chipmunks ( Tamias striatus ).

Gould published: A Monograph of the Trochilidae or Humming Birds with 360 plates ( 1849 – 61 ); The Mammals of Australia ( 1845 – 63 ), Handbook to the Birds of Australia ( 1865 ), The Birds of Asia ( 1850 – 83 ), The Birds of Great Britain ( 1862 – 73 ) and The Birds of New Guinea and the adjacent Papuan Islands ( 1875 – 88 ).

Mammals are not generally thought of as pollinators, but some rodents, bats and marsupials are significant pollinators and some even specialise in such activities.

However, some authorities, including the Encyclopedia of Marine Mammals and Mammal Species of the World use the originally intended name of Haviside's Dolphin.

Mammals, reptiles ( including Blanding's turtle and snapping turtle ), amphibians, and some fish have also found their way to the Brick Works and have established themselves.

( 1876 ) Remarks on some Indian and, more especially, Bornean Mammals.

In their 1997 book Classification of Mammals, Malcolm C. McKenna and Susan K. Bell ranked Simplicidentata as a mirorder within the grandorder Anagalida ( also including lagomorphs, macroscelideans, and some additional extinct groups ).

The Cenozoic is also known as the Age of Mammals, because the extinction of many groups allowed mammals to greatly diversify.

Mammals also existed during this time ; however, overshadowed by the dinosaurs, they constituted only a small and relatively insignificant part of the biosphere.

Mammals usually also only have distinct ribs on the thoracic vertebra, although fixed cervical ribs are also present in monotremes.

Mammals and snakes also contribute to the diversity of this area.

Mammals are also known to consume reptiles.

He also published A Monograph of the Macropodidae, or Family of Kangaroos ( 1841 – 1842 ) and the three volume work The Mammals of Australia ( 1849 – 1861 ).

The Long-finned pilot whale is also covered by the Agreement on the Conservation of Small Cetaceans of the Baltic, North East Atlantic, Irish and North Seas ( ASCOBANS ), the Agreement on the Conservation of Cetaceans in the Black Sea, Mediterranean Sea and Contiguous Atlantic Area ( ACCOBAMS ), the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region ( Pacific Cetaceans MoU ) and the Memorandum of Understanding Concerning the Conservation of the Manatee and Small Cetaceans of Western Africa and Macaronesia ( Western African Aquatic Mammals MoU ).

Barotrauma in Diving Sea Mammals: Whales and dolphins also suffer severely disabling barotrauma when exposed to excessive pressure changes induced by navy sonar, oil industry airguns, explosives, undersea earthquakes and volcanic eruptions.

Mammals are also homeothermic, although they differ from Dimetrodon in being endothermic, controlling their body temperature internally through heightened metabolism.

Mammals also use this trick for increasing the speed of signals in the

Mammals and bird species represent the majority of seed dispersing species, however, frugivorous fish, tortoises, lizards, and even amphibians also disperse seeds.

A second, shorter shaggy dog story, entitled Mammals vs. Insects, was also broadcast on 4 January 2000.

Mammals and birds are also well-known from the formation.

Mammals including coyote and bear also eat and disperse the berries.

Mammals such as Black Bear, White-tailed Deer, weasel, porcupine, skunk and rabbit are also found.

Here shows The Age of Mammals mural, also painted by Rudolph F. Zallinger.

The first act takes place during an impending ice age, in the second act the family circumstances have changed as George becomes president of the Fraternal Order of Mammals ( apparent references to Sodom and Gomorrah but also to the Roaring Twenties ), and the end of the world approaches a second time ; the third act opens with Maggie and Gladys emerging from a bunker at the end of a seven-year-long war.

Sea Mammals are also quite common in Cape Cod Bay such as seals, dolphins and whales.

Mammals such as shrews, marsupials, and squirrel-like rodents are also represented, although usually only by their fossilized teeth, rather than bones.

Mammals, such as California ground squirrels, Audubon cottontails, kangaroo rats, gophers, coyotes, gray foxes, opossums, pack rats, skunks and bobcats, and reptiles including lizards of many kinds and snakes ranging from gopher snakes to the venomous rattlers, also populate the gardens.

Mammals are also present in the park and surrounding areas, species observed include moose, snowshoe hares, weasels, groundhogs, muskrats, beavers, deer and coyotes.