Which creature has the most powerful wings relative to its size?

[PhysicoRaj]

Which animal's (bird or insect) wings produce the highest amount of lift, despite having short wingspan or a fat body (proportional to it's wings' size)??

 

[jedishrfu]

maybe the hummingbird.

 

[PhysicoRaj]

May be. But have a look at this. (you may have seen this before). But what kind of an insect is this?(refer this link)http://www.youtube.com/watch?v=mPtGFyR6Hgo

 

[Borek]

Your insect is closely related to this squirrel:



Or, in other words - video you posted has nothing to do with the reality.

 

[PhysicoRaj]

So there can't be any insect with that much lift...right?

 

[Borek]

Yes.

 

[jedishrfu]

I have the answer: Dumbo!

 

[turbo]

Having spent some down-time between jobs around the Gulf coast, I was quite impressed with the flying capabilities of the brown pelican. They are pretty massive-looking birds, and as they feed they are scooping up lots of salt water to get to the schools of small fish that they feed on. Impressive, strong fliers.

I expect though that the outliers will be in the realm of insects, though. Each summer, I anticipate the return of the assassin bugs, which can kill and lug off bumblebees that appear to be much more massive than they are.