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Our week-long sea turtle lesson plan investigates this captivating aquatic animal, helping students to discover more about the various species of sea turtles, their unique habitats, diet, life ...
A female common snapping turtle depositing her eggs in a hole she dug. Turtles, including sea turtles, lay their eggs on land, although some lay eggs near water that rises and falls in level, submerging the eggs. While most species build nests and lay eggs where they forage, some travel miles.
The baby sea turtles break free of the egg shell, dig through the sand, and crawl into the sea. Most species of sea turtles hatch at night. However, the Kemp's ridley sea turtle commonly hatches during the day. Sea turtle nests that hatch during the day are more vulnerable to predators, and may encounter more human activity on the beach.
In Mexico, turtle eggs are a common meal; locals claim the egg is an aphrodisiac. [87] Eating turtle eggs or meat can cause serious illness due to harmful bacteria, such as Pseudomonas aeruginosa and Serratia marcescens, and high levels of toxic metals that build up through bioaccumulation. [86] [88]
Reptile eggs, bird eggs, and monotreme eggs are laid out of water and are surrounded by a protective shell, either flexible or inflexible. Eggs laid on land or in nests are usually kept within a warm and favorable temperature range while the embryo grows. When the embryo is adequately developed it hatches, i.e., breaks out of the egg's shell.
Graciela Tiburcio, a biologist and sea turtle expert, told the AP that moving the eggs would cause many to die — but the number would be higher if they did nothing.
While mating, each of the turtles shakes its head. [citation needed] The female will lay two to ten eggs on average, normally during late spring and early summer. The eggs are placed in a flask-shaped nest about 4 to 7 in (10 to 18 cm) deep. The eggs hatch in 75–90 days. [11]
A healthy female bog turtle can lay between 30 and 45 eggs in her lifetime, but many of the offspring do not survive to reach sexual maturity. [53] Typically, older females lay more eggs than younger ones. [51] The eggs are white, elliptical, and on average 3.4 centimeters (1.3 in) long and 1.5 centimeters (0.59 in) wide. [54]
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