Four crabs exhibit varied postures in a red-lit aquarium tank.
A close-up of four crabs inside an aquarium: one crab is directly centered in view, facing towards the camera, and its legs are positioned at a 90-degree angle on both sides. Its front legs are curled up in front of itself, and it seems focused on the camera. The crab to the left of the frame is also facing forward; however, it is positioned diagonally, with its right side raised upwards. Its second front legs are stretched outwards in a defensive position, while its front most legs are curled inwards towards itself. There is a crab on the right; however, only three of its right legs are visible. Two are outstretched slightly beyond a 90-degree angle, and one leg is angled forward. A crab is on the left side, facing towards the other crabs and away from the camera. Only the right half of the crab is visible, and it is in a resting position with its legs half curled under itself. There is a bright red light shining from within the aquarium, which is illuminating it and bathing all of the crabs in a saturated red. The inside of the aquarium is very dark, the only light being the bright red emanating primarily from the left. A small spot of white light is being cast on the right side onto the pebbles that cover the ground. The background is completely black, and there is a slight red reflection on the glass containing the aquarium.