Mammals exhibit a tremendous amount of variation in sperm morphology and despite the acknowledgement of sperm structural diversity across taxa. its functional significance remains poorly understood. Of particular interest is the sperm of rodents. While most Eutherian mammal spermatozoa are relatively simple cells with round or paddle-shaped heads. https://www.roneverhart.com/A-Pea-in-the-Pod-Clip-Down-Nursing-Bra-Black-L/