MAREK MIS / SCIENCE PHOTO LIBRARY MAREK MIS / SCIENCE PHOTO LIBRARY
Hydra budding, polarized light micrograph. Under the right conditions, this hydrozoan invertebrate reproduces asexually by forming buds that break away when mature. Hydra are small simple predatory fresh-water animals. They catch small swimming crustaceans such as water fleas using stinging and adhesive cells on their tentacles. Dark field illumination. Magnification: x40 when printed at 10 centimetres wide.
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