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They are strong fliers; their broad, blunt-tipped wings require faster wing-beats than those of many ducks and they take off with some difficulty. Northern species tend to be migratory ; southern species do not migrate though the hardhead travels long distances on an irregular basis in response to rainfall.
The code is also known as the "Contra Code" and "30 Lives Code", since the code provided the player 30 extra lives in Contra. The code has been used to help novice players progress through the game. [10] [12] The Konami Code was created by Kazuhisa Hashimoto, who was developing the home port of the 1985 arcade game Gradius for the NES.
The white-throated dipper and American dipper are also known in Britain and America, respectively, as the water ouzel (sometimes spelt "ousel") – ouzel originally meant the only distantly related but superficially similar Eurasian blackbird (Old English osle). Ouzel also survives as the name of a relative of the blackbird, the ring ouzel. [6]
The evolution of flippers in penguins was at the expense of their flying capabilities, in spite of evolving from an auk-like ancestor that could 'fly' underwater as well in the air. Form constrains function, and the wings of diving flying species, such as the murre or cormorant have not developed into flippers. The flippers of penguins became ...
[citation needed] Plunge-diving birds are notable for their beaks, necks, and morphing wings. Plunge-diving birds generally have a higher beak angle ratio than others. [ 5 ] Beak angle ratio is defined as the top angle divided by the side angle.
An underwater glider is a type of autonomous underwater vehicle (AUV) that employs variable-buoyancy propulsion instead of traditional propellers or thrusters. It employs variable buoyancy in a similar way to a profiling float , but unlike a float, which can move only up and down, an underwater glider is fitted with hydrofoils (underwater wings ...
A growing property insurance crisis may make it hard to get a mortgage in parts of the country in the coming decades, Federal Reserve Chairman Jerome Powell said Tuesday in testimony before Congress.
Aquatic insects or water insects live some portion of their life cycle in the water. They feed in the same ways as other insects.Some diving insects, such as predatory diving beetles, can hunt for food underwater where land-living insects cannot compete.