Page 138 - Darwinism Refuted

DARWINISM REFUTED

of camels. Like camels, marine mammals do not sweat; however, their
kidneys are perfectly functional, producing highly concentrated urine that
enables the animal to save water. In this way, water loss is reduced to a
minimum.
Water retention can be seen even in minor details. For instance, the
mother whale feeds her baby with a concentrated form of milk similar to
cheese. This milk contains ten times more fat than human milk. There are
a number of chemical reasons why this milk is so rich in fat. Water is
released as the young whale digests the milk. In this way, the mother
meets the young whale's water needs with minimum water loss.
2- Sight and communication: The eyes of dolphins and whales
enable them to have acute eyesight in different environments. They have
perfect eyesight in water as well as out. Yet most living things, including
man, have poor eyesight out of their natural environments.
The eyes of marine and land-dwelling mammals are astonishingly
elaborate. On land, the eyes face a number of potential dangers. That is
why the eyes of land-dwelling animals have lids to protect them. In the
ocean, the greatest threats to the eye come from the high level of salt and
the pressure from currents. To avoid direct contact with the currents, the
eyes are located on the sides of the head. In addition to this, a hard layer
protects the eyes of creatures which dive to great depths. The eyes of
marine mammals are equipped with elaborate features enabling them to
see at depths where there is little light. For example, their lenses are
perfectly circular in shape, while in their retinas, rods (the cells sensitive
to light) outnumber cones (the cells sensitive to colours and details).
Furthermore, the eyes of cetaceans also contain a phosphorus layer, which
also helps them see particularly well in the dark.
Even so, however, sight is not most important sensory modality of
marine mammals. They rely more on their sense of hearing than is
typically the case with land-dwelling mammals. Light is essential for
sight, whereas hearing requires no such assistance. Many whales and
dolphins hunt at a depth where it is completely dark, by means of a sonar
mechanism they possess. Toothed whales, in particular, "see" by means of
sound waves. Just as happens with light waves in the visual system, sound
waves are focused and then analyzed and interpreted in the brain. This

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