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Water spider, SEM
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Water spider, SEM
Water spider. Coloured scanning electron micrograph (SEM) of the head of a water spider (Argyroneta aquatica), showing its large jaws (mandibles, centre right) and its eyes (upper right). A. aquatica is the only spider that lives permanently below water. It rests and eats in a bell-shaped retreat made of silk, which is filled with air carried from the surface. Magnification: x45 when printed 10cm wide
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Media ID 6360949
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Arachnid Arachnids Arachnology Arthropod Arthropods Colored Eyes False Colored Jaws Legs Mandible Mandibles Mouth Part Parts Predator Predatory Salticidae False Coloured Water Spider
EDITORS COMMENTS
This print showcases the intricate details of a water spider, taken using a scanning electron microscope (SEM). The image reveals the head of this remarkable arachnid species, known as Argyroneta aquatica. What sets A. aquatica apart from other spiders is its unique ability to live permanently below water. In this snapshot, we can observe the water spider's large jaws or mandibles positioned at the center-right of the frame. These powerful mouthparts are essential for capturing prey in its aquatic habitat. Additionally, our attention is drawn to its eyes located in the upper right corner, providing it with keen vision underwater. A. aquatica constructs a bell-shaped retreat made entirely of silk where it rests and feeds. This structure cleverly traps air brought down from the surface by the spider itself, allowing it to breathe while submerged. It is fascinating how nature has equipped this predator with adaptations that enable survival in an otherwise inhospitable environment. The vibrant colors used in this SEM capture enhance our understanding of these incredible creatures and their biology. With a magnification level of x45 when printed 10cm wide, every minute detail becomes apparent – from individual hairs on its legs to intricate patterns on its body. Steve Gschmeissner's skillful photography brings forth not only scientific value but also an aesthetic appreciation for these often overlooked inhabitants of our natural world.
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