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The stop sign is retroreflective and equipped either with red blinking lights above and below the stop legend or with a legend that is illuminated by LEDs. Unlike a normal stop sign, this sign indicates a two-way absolute stop, requiring other vehicles travelling in both directions to remain stopped until the sign is retracted. [citation needed]
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The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ in bony fish (but not cartilaginous fish [1]) that functions to modulate buoyancy, and thus allowing the fish to stay at desired water depth without having to maintain lift via swimming, which expends more energy. [2]
Swim bladder disease is a very common illness within aquarium fish that results in the bladder not functioning properly causing the fish to swim upside down. This disorder can be due to multiple factors such as physical abnormalities, environmental, mechanical, or in some cases due to fishes being inbred.
According to Guinness World Records 2009, Hippocampus zosterae (the dwarf seahorse) is the slowest moving fish, with a top speed of about 5 feet (150 cm) per hour. [21] They swim very poorly, rapidly fluttering a dorsal fin and using pectoral fins (located behind their eyes) to steer.
For premium support please call: 800-290-4726 more ways to reach us. Mail. ... Many invasive fish, plus other animals and plants, are ecological nuisances in our state. ... To stop the spread of ...
While the default setting is to show all images except for those in spam emails, turning the setting off can increase the privacy and security of your account by disabling potentially malicious images and content. 1. Click Settings | More Settings. 2. Click Viewing email tab. 3. Scroll down, until you see Show images in messages.
English: Sign R1-1 "Stop" from the Manual of Uniform Traffic Control Devices, made to the specifications of the Standard Highway Signs (30 by 30 inches). Date 5 April 2009 (original upload date)