Name any 2 legged animals

Amp34 · 7 Jan 2012 at 17:19

sHo0sH said:
How about a Camel?

http://en.wikipedia.org/wiki/File:C...en_-_On_the_Anatomy_of_Vertebrates_(1866).jpg

That image really shows how what we think of as a knee on the back limb is actually the "ankle", with the camel walking on the ball of it's foot.

Amp34 · 7 Jan 2012 at 17:24

Kenai said:
leg/leg/
Noun:
Each of the limbs on which a person or animal walks and stands

Dogs, cows, etc. have four legs as far as I am concerned

Yeah well, a Hard drive is that big box sitting next to the monitor that the mouse and keyboard plug into...

It's common usage outside of computer literate circles so must be true...

Deadbeat · 7 Jan 2012 at 17:29

Amp34 said:
Yeah well, a Hard drive is that big box sitting next to the monitor that the mouse and keyboard plug into...

It's common usage outside of computer literate circles so must be true...

Now you're just being facetious for the sake of it.

Kenai · 7 Jan 2012 at 17:50

Amp34 said:
Yeah well, a Hard drive is that big box sitting next to the monitor that the mouse and keyboard plug into...

It's common usage outside of computer literate circles so must be true...

Well no, because that example is just something said by a confused and illiterate minority not the common name for a computer. Most people call a computer... a computer. I suspect you'd struggle to find a dictionary that defined 'hard drive' as "that big box sitting next to the monitor" too.

I know what you're trying to get at but that's an awful example.

Nitefly · 7 Jan 2012 at 18:26

Clearly a dog has 4 legs, to say otherwise is just trying to be smart.

Likewise with the octopus. It uses two tentacles for movement in the similar way that non-cephalopods use their limbs for movement. But they aren't legs, they are tentacles.

To answer the OP, monkeys / apes, birds, and that two legged dessert springy rodent thing (that I can't remember the name of).

The Funktopus · 7 Jan 2012 at 18:34

Heather Mills.

Oh, wait.......

kylew · 7 Jan 2012 at 19:05

Amp34 said:
Actually I'd be inclined to say there are no mammals with more than 2 legs. I'd be interested to see if anyone want to prove me wrong there.

Elephants, the only animals that actually have 4 legs (2 sets of knees). Everything else has 2 arms and 2 legs (one set of knees and one set of elbows).

Castiel · 7 Jan 2012 at 19:15

Camarilla said:
Wyverns have two legs

Lol....never was much cop at heraldry....

Nitefly · 7 Jan 2012 at 19:18

kylew said:
Elephants, the only animals that actually have 4 legs (2 sets of knees). Everything else has 2 arms and 2 legs (one set of knees and one set of elbows).

That's a pretty strange definition of leg.

Castiel · 7 Jan 2012 at 19:24

Nitefly said:
That's a pretty strange definition of leg.

As far as I am aware the definition of a Leg simply requires it to be a limb upon which one normally walks.

The fact that mammals have elbows in their front limbs doesn't make them arms....they are clearly legs. Forelegs and hindlegs iifc.

vicisthebest · 7 Jan 2012 at 21:06

Jay794 said:
Can you name a 4 legged animal that flies?

bat?

Amp34 · 7 Jan 2012 at 21:35

kylew said:
Elephants, the only animals that actually have 4 legs (2 sets of knees). Everything else has 2 arms and 2 legs (one set of knees and one set of elbows).

Got a link to that as the anatomy I've seen still explains it as "arms"

Nitefly said:
That's a pretty strange definition of leg.

Not really if you realise the term "leg" for all four limbs is just a colloquial term rather than scientific term.

Glaucus · 7 Jan 2012 at 22:23

Amp34 said:
Got a link to that as the anatomy I've seen still explains it as "arms".

where does anatomy say they are arms?
Becuase arms evolved from legs. So if anything, it's the other way around and arms are legs. The fact they have shoulders and elbows. Doesn't mean they aren't legs. Why do all legs have to have a pelvis and knee? They simply don't.

Show us this scientific term. You keep saying it and posted nothing to back it up.

Amp34 · 7 Jan 2012 at 23:00

Kenai said:
leg/leg/
Noun:
Each of the limbs on which a person or animal walks and stands

Dogs, cows, etc. have four legs as far as I am concerned

And human babies...

Glaucus said:
where does anatomy say they are arms?
Becuase arms evolved from legs. So if anything, it's the other way around and arms are legs. The fact they have shoulders and elbows. Doesn't mean they aren't legs. Why do all legs have to have a pelvis and knee? They simply don't.

Show us this scientific term. You keep saying it and posted nothing to back it up.

For starters I didn't say arms, I said "arms" and have previously called them forelimbs.

Aside from that horses do actually have forearms, bit odd having a forearm on their leg right?

http://en.wikipedia.org/wiki/Equine_anatomy
http://www.horse-diseases.com/horseanatomy.html

same with dogs
http://www.lookd.com/dogs/anatomy.html
http://www.dummies.com/how-to/content/dog-anatomy-from-head-to-tail.html

I'm sure there are probably similar definitions for other animals as well (but I can't be bothered to search for ages to prove this point.

Which scientific term is it you are looking for? Definition of arm? I don't think I've said they have any arms, just they weren't legs, however looking at the images I've linked to above I'm starting to think they may indeed be called arms

EDIT: Interesting thought about arms evolving from legs, however that would suggest that humans also have 4 legs, which would confuse this thread even more.

vicisthebest · 7 Jan 2012 at 23:02

Wow... is this debate STILL going on?

Glaucus · 7 Jan 2012 at 23:05

Amp34 said:
.

Which scientific term is it you are looking for? Definition of arm? I don't think I've said they have any arms, just they weren't legs, however looking at the images I've linked to above I'm starting to think they may indeed be called arms

EDIT: Interesting thought about arms evolving from legs, however that would suggest that humans also have 4 legs, which would confuse this thread even more.

I'm looking for any scientific discription that says legs can't have shoulders or elbows. Can you not give that?

Even the medical definition includes
3. any of the four limbs of a quadruped.

And no it's not odd, arms and legs share the same evolution route. So it really isn't strange they share certain parts, seeing as we probably named are parts before animals it's no surprise at all.

Everything you have posted doesn't show why scientifically they are not legs. You haven't shown one scrap of info why they aren't classified as legs.

fini · 7 Jan 2012 at 23:10

So it looks like arms are a type of leg - is this the reason for the confusion?

Tom0 · 7 Jan 2012 at 23:13

Frog.

Amp34 · 7 Jan 2012 at 23:14

vicisthebest said:
Wow... is this debate STILL going on?

Apparently so...

Glaucus said:
I'm looking for any scientific discription that says legs can't have shoulders or elbows. Can you not give that?

Even the medical definition includes
3. any of the four limbs of a quadruped.

And no it's not odd, arms and legs share the same evolution route. So it really isn't strange they share certain parts, seeing as we probably named are parts before animals it's no surprise at all.

And doesn't show why scientifically they are not legs. You have shown one scrap of info why they aren't classified as legs.

That's fine by me then. Suffice to say the back and front limbs of all mammals are significantly different and what this discussion seems to have brought up is that in fact there are no two legged animals according to the definition you have just given in that post.

It's not odd, just causes issues for the defined terms we know. The forelimbs of all mammals are similar to human arms, the back limbs of all mammals are similar to human legs.

So to conclude, there are no mammals with only two legs and humans are among the mammals that have four.

EDIT: Yes I realise the definition of quadruped is

OED said:
an animal which has four feet, especially an ungulate mammal:

However bearing in mind ...

OED said:
the lower extremity of the leg below the ankle, on which a person stands or walks.
a corresponding part of the leg in vertebrate animals.

Well the forelimb "feet" of an animal are attached to it's wrist...

Ok, now there is pedantry and there is PEDANTRY and I think I'm moving towards the latter...

Suffice to say, no mammal has 4 knees (we must all agree on that right?)

ecksmen · 7 Jan 2012 at 23:15

All I know is that tomato is a fruit.