How can some insects and birds hover in one place like dragonflies and hummingbirds while others can’t?

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How can some insects and birds hover in one place like dragonflies and hummingbirds while others can’t?

In: Biology
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Because humming birds and dragon flies flap their wings fast and can hover but others are only able to flap enough to keep moving so they can’t hover

How a critter flies has to do with the [shape of its wings](https://i.redd.it/53dv5323i2421.jpg) and how they flap their wings. [Hummingbirds](https://en.wikipedia.org/wiki/Hummingbird#Aerodynamics_of_flight) whip their wings back and forth really fast to fly, while [other kinds of bird](https://en.wikipedia.org/wiki/Bird_flight#Flight) don’t have to beat their wings constantly and use air currents to gain altitude and glide.