Life
Three-eyed predator stalked the seas 500 million years ago
Stanleycaris hirpex, which lived in the Cambrian period, had two protruding eyes on the side of its head and a larger eye in the centre
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Stanleycaris hirpex, which lived in the Cambrian period, had two protruding eyes on the side of its head and a larger eye in the centre
Ground sloths are often depicted as herbivorous giants of the ice age, but a fresh analysis suggests a 3-metre-long species that once lived in South America also ate some meat