NB Mammal
2006-12-08 02:31:04 · 18 answers · asked by Anonymous in Science & Mathematics ➔ Zoology
No one has ever conducted a global survey to provide a definitive answer. So, logically, the most populous mammal would have to have a nearly global distribution, and have large numbers of individuals in those places where they occur, and have high reproductive rates. Based on these criteria, I would have to say that it is a toss-up between the house mouse and Norway rat.
The Norway rat has a slightly wider global distribution than the house mouse, but a lower reproductive rate (5 litters per year, average litter is around 7). High rat densities occur primarily in urban areas.
The house mouse is found on all continents, but in higher densities than rats in both urban and rural areas. The house mouse can produce 13 litters in a year with average litter size around six per litter.
2006-12-08 07:56:51 · answer #1 · answered by formerly_bob 7 · 0⤊ 0⤋
Most Common Mammal On Earth
2016-11-04 12:22:22 · answer #2 · answered by ? 4 · 0⤊ 0⤋
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I don't think there is any one species of animal that is more populous than humans. In the USA there is at least 1 rat for every person. Rats and mice might possibly have a higher population than people, but we have to take in consideration that place like Etheopia and the desert countries probably don't have a high rat to people ratio. Next would probably would be the domestic cat, followed by domestic dog. Of the non-mammal animals it would probably be the domestic chicken.
2016-04-10 03:24:38 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Weddell seals? Yeah right. The most common mammal is the spectacularly successful and adaptable brown rat. Estimating numbers is very difficult as there are as many as there are people. They say that, on average, in the UK you're rarely more than 5 metres away from one.
I'd like to add that Rodents as a group are also incredibly successful. Rodent species account for nearly half of ALL mammalian species from bats to apes to whales. If its not rats its human beings. Victims of our own success.
2006-12-08 03:03:37 · answer #4 · answered by Anonymous · 1⤊ 0⤋
There are now six billion people on the planet. By 2050 there will be about ten billion of us. The next most populous mammal to us is the Weddell seal, and there are about 2 million of them.
2006-12-08 02:57:28 · answer #5 · answered by Player 5 · 0⤊ 2⤋
In Robert Sullivan's book, "Rats" he claims that the rat is the most common mammal in the world.
http://www.amazon.com/Rats-Observations-History-Unwanted-Inhabitants/dp/1582344779/sr=1-1/qid=1165592530/ref=pd_bbs_sr_1/002-1622511-9484061?ie=UTF8&s=books
2006-12-08 02:44:15 · answer #6 · answered by Dr. D 7 · 0⤊ 0⤋
It depends on whether you count at the species or genus level. There seems to be consensus that the rat genus is most common, but its uncertain whether any individual species of rat outnumbers humans.
2015-06-20 15:07:15 · answer #7 · answered by Steve 1 · 0⤊ 0⤋
Rats by far, think about it, they live in the countryside, sewers, houses, factories, everywhere.
In London apparently you are never more than 3 metres away from a rat when your on the ground.
2006-12-08 02:41:04 · answer #8 · answered by kevgreengrass 2 · 0⤊ 0⤋
The one`s Europeans most love is the Dolphin,
a harmless creature that swims in many parts of the worlds
seas and oceans.
People empathise with this animal because it seems to have
no fear of man and it is also on record that it has saved
people from drowning many times.
2006-12-08 02:59:11 · answer #9 · answered by Anonymous · 0⤊ 2⤋
Rats or mice or some rodent for sure. They're a very common food supply; tons of predators eat them. They also breed very fast.
2006-12-08 04:04:34 · answer #10 · answered by Anonymous · 0⤊ 0⤋