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Images Dated 28th March 2003

Choose from 41 pictures in our Images Dated 28th March 2003 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.

Adelie penguins on nest Featured 28 Mar 2003 Image

Adelie penguins on nest

Adelie penguins (Pygoscelis adeliae) nesting. Adelie penguins are highly social birds and a single colony can contain tens of thousands of pairs. Pairs do not only defend their own nests, but sometimes defend the colony as a whole, especially if they have failed to breed successfully. The male and female take turns to incubate the eggs, fasting while they do so for up to 23 days. They feed on krill and small fish. Adelie penguins grow up to 38 centimetres heigh and can weigh up to 3.4 kilograms. They are found around the Antarctic peninsula and nearby islands. Photographed on Signy Island, South Orkney Islands, British Antarctic Territory


Beluga whale bull Featured 28 Mar 2003 Image

Beluga whale bull

Beluga whale (or white whale, Delphinapterus leucas) bull. In summer, belugas migrate into river estuaries, where they moult. The whale's yellowish skin colour in this picture is typical of moulting adults. Belugas are normally a creamy white. Their skin is 100 times thicker than a human's, mainly for insulation. To encourage shedding of the old skin, they roll on the river bottom to rub against rocks and mud. Belugas inhabit the Arctic coastal waters of Europe, Asia and North America. They live in pods (groups) of 20-200. They dive to the seabed to feed on bottom- dwelling fish and invertebrates. Photographed in July in Cunningham Inlet, Canadian Arctic


Stoma on sepal of primula flower Featured 28 Mar 2003 Image

Stoma on sepal of primula flower

False-colour scanning electron micrograph of a stoma, or pore, on a sepal of the primula flower, Primula malacoides. The stoma appears to be open, but is in fact closed, its inner walls tightly pressed together. Stomata open & close to allow the exchange of gases between plant & atmosphere. Each stoma consists of two "guard cells" which control the movement of the pore. The changing shape of the pore is due to the amount of water present in the guard cells. Stomata are most abundant in leaves, where the intake of carbon dioxide through these pores is essential during photosynthesis. Magnification: x500 at 6x4.5cm size. Yellow & green full colouring. Reference: MICROCOSMOS, figure 4.12, page 73