- How long is their lifespan?
- What is the biggest leatherback in history?
- Why do they lay their eggs on the same beach?
- Why do the female leatherback turtles abandon their eggs after laying them?
- Why do people eat them?
- Can we keep them as pets?
- Which is bigger, the male or the female?
- How hard is their shell?
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My research answers for leatherback turtles
ReplyDelete1. Their lifespan are approximately 100 years.
2. In history, the largest leatherback turtle was known to be on the coast of Wales ( UK ) in 1988. It weighed over 2,000 IBS and measured 9 feet in length.
3. It is widely believed that hatchlings imprink the unique qualities of their natal beach while still in the nest and/or during their first trip from the nest to the sea. Beach characteristics used may include smell, low frequency sound, magnetic fields and the characteristics of seasonal off shore currents.
4. Females nest every 2 to 3 years laying several nests on sandy beaches. After digging a hole and depositing about 80 to 120 eggs, the females fill in the hole with sand and camouflage the nest before returning to the sea.
5. People eat them because for traditional Asian medicines and as turtle soup delicacy in Europe.
6. No. They belong to the ocean as they require a huge swimming pool to stay in.
7. The male leatherback turtles are bigger.
8. In fact they do not possess a carapace (shell) covered with hard scales also known as scutes.
By Mulken Wee 🙋
My research answers for the leatherback turtles:
ReplyDelete1)Their lifespan is approximately 100 years.
2)The largest leatherback turtle in history was an 8.5-feet(2.6-meter-long) male weighing 2020 Ibs (916KG) that washed up on the west coast of wales in 1988.
3)It is widely believed that hatchlings imprink the unique qualities of their natal beach while still in the nest and/ or during their firs trip from the nest to the sea.
4)Female nest every 2-3 years laying several nests on sandy beaches. After digging a hole and depositing about 80 to 120 eggs , the females fill in the hole with sand and camouflage the nest before returning to the sea.
5)People eat them because for traditional Asian medicines and as turtle soup delicacy in Europe.
6)Half No And Half Yes.
7)The male leatherbacks are bigger.
8)In fact they do not possess a carapace /shell covered with hard scales also known as scutes.
By, Amir Bin Azahar
4B
And Also ... MORE FACTS ABOUT THEM
DeleteThe leatherback sea turtle , sometimes called the lute turtle or leathery turtle, is the largest of all living turtles and is the fourth-heaviest modern reptile behind three .[5][6][7] It is the only living species in the genus and family . It can easily be differentiated from other modern sea turtles by its lack of a bony shell. Instead, its carapace is covered by skin and oily flesh. is the only extant genus of the family.
Relatives of modern leatherback turtles have existed in some form since the first true sea turtles evolved over 110 million years ago during the Cretaceous period. The are close relatives of the family Cheloniidae, which contains the other six extant sea turtle species. However, their sister taxon is the extinct family Protostegidae which included other species that did not have a hard carapace.
Leatherback turtles have the most hydrodynamic body design of any sea turtle, with a large, teardrop-shaped body. A large pair of front flippers powers the turtles through the water. Like other sea turtles, the leatherback has flattened fore limbs adapted for swimming in the open ocean. Claws are absent from both pairs of flippers. The leatherback's flippers are the largest in proportion to its body among extant sea turtles. Leatherback's front flippers can grow up to 2.7 m (8.9 ft) in large specimens, the largest flippers (even in comparison to its body) of any sea turtle.
The leatherback has several characteristics that distinguish it from other sea turtles. Its most notable feature is the lack of a bony carapace. Instead of scutes, it has thick, leathery skin with embedded minuscule osteoderms. Seven distinct ridges rise from the carapace, crossing from the anterior to posterior margin of the turtle's back. Leatherbacks are unique among reptiles in that their scales lack β-keratin. The entire turtle's dorsal surface is colored dark grey to black, with a scattering of white blotches and spots. Demonstrating countershading, the turtle's underside is lightly colored.[18][19] Instead of teeth, the leatherback turtle has points on the tomium of its upper lip, with backwards spines in its throat to help it swallow food and to stop its prey from escaping once caught.
Leatherbacks have been viewed as unique among reptiles for their ability to maintain high body temperatures using metabolically generated heat, or endothermy. Initial studies on their metabolic rates found leatherbacks had resting metabolisms around three times higher than expected for reptiles of their size.[31] However, recent studies using reptile representatives encompassing all the size ranges leatherbacks pass through during ontogeny discovered the resting metabolic rate of a large D. coriacea is not significantly different from predicted results based on allometry.[32]
They are also the fastest-moving reptiles. The 1992 edition of the Guinness Book of World Records lists the leatherback turtle moving at 35.28 km/h (21.92 mph) in the water.[38][39] More typically, they swim at 1.80–10.08 km/h (1.12–6.26 mph).[40]
Distribution
The leatherback turtle is a species with a cosmopolitan global range. Of all the extant sea turtle species, D. coriacea has the widest distribution, reaching as far north as Alaska and Norway and as far south as Cape Agulhas in Africa and the southernmost tip of New Zealand.[18] The leatherback is found in all tropical and subtropical oceans, and its range extends well into the Arctic Circle.[41]
They are also a major jellyfish predator,[77][78] which helps keep populations in check. This bears importance to humans, as jellyfish diets consist largely of larval fish, the adults of which are commercially fished by humans
And also it is by Amir Bin Azahar, 4B
DeleteWhy must write so LONG!!!!!
ReplyDelete