60,000 to 120,000 
Eggs. Each Female Horseshoe Crab lays thousands of small greenish eggs. Horseshoe crabs arrive on the beach, usually at night on a new moon. The female crab digs holes in the beach about 6 inches in diameter and can lay as many as 100,000 eggs at one time. The male which is latched onto the female then fertilize the eggs. Horseshoe crab eggs are a main source of food for migratory birds, most are eaten before they can even hatch. Confidence votes 3.4K. A female horseshoe crab may lay between 60,000 and 120,000 eggs, laying a few thousand at a time. Most of the eggs are eaten long before being able to hatch. A: Yes, crabs lay eggs. There are many types of crab, but their reproductive activities are similar. Female horseshoe crabs lay between 60,000 and 120,000 eggs. A female horseshoe crab may lay between 60,000 and 120,000 eggs, laying a few thousand at a time. Most of the eggs are eaten long before being able to hatch.
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how many eggs does a horseshoe crab lay