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Images Dated 10th March 1999

Available as Framed Photos, Photos, Wall Art and Gift Items

Choose from 10 pictures in our Images Dated 10th March 1999 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.

Bigleaf Maple (Acer macrophyllum) trees covered with moss in temperate rainforest
Nature in Print

Nurse log stage five temperate rainforest, Olympic National Park, Washington
Nature in Print

Western Hemlock (Tsuga heterophylla) in old growth temperate rainforest, North America
Nature in Print

Opuntia (Opuntia echios) cactus Galapagos Islands National Park, Ecuador
Nature in Print

Coyote (Canis latrans) running across the top of a Sand Dune, UT
Animals Animals

Chilean Tortoise (Geochelone chilensis)
Animals Animals

Spring Native Wildflowers in Western Australia - North West Coast Hwy, Australia
Animals Animals

Tomatoes in Different Stages of Ripening
Animals Animals

Featured 10 Mar 1999 Print

Sperm and egg

Fertilisation. Computer artwork of a human sperm approaching an egg (ovum, top left) just before the process of fertilisation. The sperm has an oval head and a hair-like tail which it beats with a whiplash motion to enable it to swim. The human female usually produces a single large egg from the ovary, while the male releases some 300 million much smaller sperm. The sperm travel through the uterus (womb) and up the fallopian tubes to reach the egg. The sperm must penetrate the egg; this penetration is aided by enzymes contained in the sperm's head. Only one sperm can fuse with the egg nucleus. Fertilisation enables male and female genetic material to be shared