Mammals
in sentence
218 examples of Mammals in a sentence
That's quite a bit more than just a few
mammals
that we're eating, like a cow or a pig or a sheep.
What we find is that over these 40-odd years that I and others have been studying chimpanzees and the other great apes, and, as I say, other
mammals
with complex brains and social systems, we have found that after all, there isn't a sharp line dividing humans from the rest of the animal kingdom.
This is just a tiny range actually: It's us mammals; we're one of these.
If we look across many, many different species of animals, not just us primates, but also including other mammals, birds, even marsupials like kangaroos and wombats, it turns out that there's a relationship between how long a childhood a species has and how big their brains are compared to their bodies and how smart and flexible they are.
First thing that happened in evolution with
mammals
is we started to develop a thing called the neocortex.
So oxytocin is a simple and ancient molecule found only in
mammals.
In addition to that, after the baby's born, our other unique invention as
mammals
is that we nourish our offspring after they're born.
We actually know the fishes better than we do any other group in the ocean other than marine
mammals.
That's why people keep
mammals
in the home and not turtles or snakes or something like that, who don't have that kind of empathy.
And that's related to that whole body channel of synchronization that underlies empathy, and that is universal in the mammals, basically.
It's true, we may have charted all the continents on the planet and we may have discovered all the
mammals
that are out there, but that doesn't mean that there's nothing left to explore on Earth.
Well, we found of course that this material became overgrown with algae, and we needed then to develop a cleaning procedure, and we also looked at how seabirds and marine
mammals
interacted, and in fact you see here a sea otter that found this incredibly interesting, and would periodically work its way across this little floating water bed, and we wanted to hire this guy or train him to be able to clean the surface of these things, but that's for the future.
I mentioned we looked at birds and marine
mammals
and looked at basically the environmental impact of the system, and finally we looked at the economics, and what I mean by economics is, what is the energy required to run the system?
So I have had the good fortune for the past 20 years to study these fascinating and beautiful
mammals.
One fifth of all living
mammals
is a bat, and they have very unique attributes.
And so therefore, if you look at the same region of a genome in many
mammals
that have been evolutionarily distant from each other and are also ecologically divergent, you will get a better understanding of what the evolutionary prior of that site is, i.e., if it is important for the mammal to function, for its survival, it will be the same in all of those different lineages, species, taxa.
So therefore, if we were to do this, what we'd need to do is sequence that region in all these different
mammals
and ascertain if it's the same or if it's different.
So in this case here, if all the
mammals
that we look at have a yellow-type genome at that site, it probably suggests that purple is bad.
This could be even more powerful if you look at
mammals
that are doing things slightly differently.
If we look at that region in
mammals
that don't see so well, such as bats, and we find that bats that don't see so well have the purple type, we know that this is probably what's causing this disease.
Well, typically, in
mammals
there is a relationship between body size, metabolic rate, and how long you can live for, and you can predict how long a mammal can live for given its body size.
So typically, small
mammals
live fast, die young.
As you can see here on this graph, in blue, these are all other mammals, but bats can live up to nine times longer than expected despite having a really, really high metabolic rate, and the question is, how can they do that?
Aging is a big problem for humanity, and I believe that by studying bats, we can uncover the molecular mechanisms that enable
mammals
to achieve extraordinary longevity.
But you could ask, how could these large
mammals
live in this desert environment?
It happened to lots of
mammals.
Now, dolphins are social mammals, so they love to play, and one of their favorite games is to drag seaweed, or sargassum in this case, around.
In fact, temperate and tropical rainforests each produce a vibrant animal orchestra, that instantaneous and organized expression of insects, reptiles, amphibians, birds and
mammals.
When I began recording in the late '60s, the typical methods of recording were limited to the fragmented capture of individual species like birds mostly, in the beginning, but later animals like
mammals
and amphibians.
You just need to look at your bellybutton that you share with other placental mammals, or your backbone that you share with other vertebrates, or your DNA that you share with all other life on earth.
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