Zoology: Shark skin (acanthias acanthias). Scales from the skin of a shark. These sharply pointed placoid scales are also known as dermal teeth or denticles. They give the shark’s skin the feel of sandpaper. The tip of each scale is made of dentine overlayed with dental enamel. The lower part of each scale, which anchors […]

  AN unborn elephant, perfectly formed in every way. A dolphin swimming in the womb, just as it will have to swim in the ocean the moment it is born. An unborn dog asleep as if by its master’s side. Using new technology, these images, published in UK’s Daily Mail, reveal what until now has been […]

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