ascend
The Black Bear, a solitary, predominantly vegetarian creature, is an excellent tree climber. Despite its size, it will regularly ascend to the treetops to eat.
The MOSE Project, designed to protect Venice from floods, consists of a series of gates hoisted and lowered by caissons, isolating the lagoon from the sea and stopping the tidal flow.
When threatened, the Brazilian Wandering spider assumes an erect position, lifting its first pair of legs high in the air while swaying its body from side to side.
'Spiderman' Alain Robert scaled the Burj Khalifa in Dubai, moving methodically and swiftly along the metal facade, and waving triumphantly at the top six hours later.
Noun
rise or come up to the top of the water or the ground
Half the manatee's day is spent sleeping in the water, surfacing for air at intervals no greater than 20 minutes. The rest of the time they enjoy grazing in shallow waters.
dip
Peter Coffin’s UFO roared its engine, spinning faster and faster, dipping lower and lower, its bright pink and blue and yellow lights whirling into a blur and illuminating the night sky.
Noun
downward movement under the force of gravity only
free fall
Flying snakes can’t actually gain altitude. They’re gliders, using the speed of free fall and contortions of their bodies to catch the air and generate lift.
The plunge of Angel Falls in Venezuela is so great that, before getting anywhere near the ground, much of the water is evaporated or carried away as fine mist by the wind.
Verb
carry out a sudden attack, esp. in order to make a capture
swoop
Bluebirds are admired for their lovely coloring and distinctive song. They aren't often depicted as hunters -- perching, watching, and swooping to the ground to catch their prey!