Upon what does the turtle stand

Turtles in Time is not only one of the highlights in their Super Nintendo work, but is on TV shows 17 minutes of replays and 67 minutes of players standing around. Rethinking Education for the Digital Age. Free Preview Upon what does the turtle stand? LB Ebook pdf debates digital age volumes online ebooks pdf legal education in the pdf guide for legal education in the digital age ebook Upon what does the turtle rethinking education for volumes does the turtle stand?

The leatherback is adapted to deep dives because of its unique morphology. Unlike other sea turtles, the leatherback lacks a rigid breastbone that allows it to collapse during deep dives. There is a large amount of oil in the skin and the leathery shell absorbs Nitrogen, reducing problems arising from decompression during deep dives and resurfacing.

How long can a sea turtle hold its breath? And why do they drown? As sea turtles are air breathing reptiles, they need to surface to breathe. Sea turtles can hold their breath for several hours, depending upon the level of activity.

A resting or sleeping turtle can remain underwater for hours. Recent research has shown that some turtles can even hibernate in the sea for several months! However, a stressed turtle, entangled in fishing gear for instance, quickly uses up oxygen stored within its body and may drown within minutes. How big was the largest sea turtle ever recorded?

The largest species of sea turtle was the Archelon, which measured 7 meters about 21 feet in length and lived during the time of the dinosaurs. Today, the largest living species is the leatherback turtle. Atlantic leatherbacks are slightly larger than the Pacific population. Leatherbacks measure, on average, 2 meters 6 feet in carapace shell length. The largest leatherback ever recorded was a male found stranded on the Welsh coast in He measured almost 3 meters 9 feet from tip to tail and weighed kg 2, lbs.

How are sea turtles tracked in the ocean and how long can they be tracked for? Researchers track sea turtles through using satellite telemetry. The transmitter emits signals of information to an orbiting satellite when the turtle surfaces to breathe or bask.

Data, received over a period of time, allows for tracking a turtles movement patterns and swimming speed. Usually, satellite transmitters are attached to females that come ashore to nest. Tracking has provided important information on migration routes between breeding and foraging feeding habitats. The time length of tracking depends upon how long the device remains on the turtle and on battery life.

Tracking usually continues for months, although cases have been reported exceeding 2 years. After about two years, the transmitters fall safely off the turtles. What are the methods used to tag sea turtles? There are three primary methods of tagging sea turtles. These tags are clearly visible, each containing a unique serial number and the address of the organization applying the tags. Each PIT tag also has a unique digital serial number and requires the use of PIT scanning equipment to display the tag number.

While PIT tags are more secure than flipper tags, their higher cost and the need for specialized equipment limits many researchers from using them. Why are sea turtles tagged? Sea turtles are tagged for several reasons. Flipper and PIT tags are used to identify individual turtles to help researchers learn things like nesting site fidelity, the number of nests laid during a nesting season, the number of years between nesting seasons, and growth rates.

In addition, these tags can be used to identify where a captured or stranded turtle was originally tagged, which can be used to establish possible migration pathways. While flipper and PIT tags can provide starting and ending points for migration, satellite tags are able to provide research and conservationists with the actual routes that sea turtles take between different habitats.

Do sea turtles ever lay eggs underwater? For the eggs to survive and have a chance of hatching, sea turtles must lay their eggs on sandy beaches. As they are developing, the embryos breathe air through a membrane in the eggs, and so they cannot survive if they are continuously covered with water. If disturbed, sea turtles will sometimes nest. This is because sand does not hold nutrients very well. Sea turtles use beaches and the lower dunes to nest and lay their eggs.

Sea turtles lay around eggs in a nest and lay between 3 and 7 nests during the summer nesting season. Not every nest will hatch, not every egg in a nest will hatch, and not all of the hatchlings in a nest will make it out of the nest. All the unhatched nests, eggs and trapped hatchlings are very good sources of nutrients for the dune vegetation. Even the left-over egg shells from hatched eggs provide nutrients. Dune plants use the nutrients from turtle eggs to grow and become stronger.

Healthy vegetation and strong root systems hold the sand in the dunes and protect the beach from erosion. Put the turtle's pen up off the paper. Put the turtle pen back down on the paper. Clear the screen and start over. Hide the turtle triangle. Show the turtle triangle. Repeat the commands 3 times. Resets the turtle to centre of the screen. SETXY 20 Sets position of turtle to new values of X and Y.

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