Signs of 'spider' phenomenon on Mars

Phys.org— ESA's Mars Express has snapped the telltale traces of "spiders" scattered across the southern polar region of Mars.

RedState—Relax: There Are No Spiders From Mars. The European Space Agency's Mars Express orbiter recently returned some interesting images of Mars, that appeared to show large groups of spiders?

Yahoo—Orbiter Spots "Spiders" on Surface of Mars. Martian Creepy Crawlers The European Space Agency's Mars Express orbiter has spotted mysterious "spiders" roaming the Red Planet's southern polar region. But they're not the arachnids we've come to fear back on Earth — they're the result of a complex geological process that causes carbon dioxide to sublimate, bringing darker material from below the surface

Yahoo—Satellite spots spider-like formations on Mars. The European Space Agency (ESA) has announced that the 'spiders' spotted by the agency’s Mars orbiter are actually geological features. When sunlight mixes with carbon dioxide, it triggers the release of gases that fracture ice, allowing dust to reach the surface and form spider-like figures. According to scientists, these figures are not small and measure anywhere from around 50 yards to over half a mile wide.