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[34] [36] The glossiphoniids brood their eggs, either by attaching the cocoon to the substrate and covering it with their ventral surface, or by securing the cocoon to their ventral surface, and even carrying the newly hatched young to their first meal. [37] When breeding, most marine leeches leave their hosts and become free-living in estuaries.
Leeches are hermaphrodites, and mating may take place on or off the fish host, but in either case, the cocoon, usually containing a single egg, is deposited elsewhere, usually stuck to a stone or piece of vegetation, or even to the carapace of a crustacean. When the egg hatches, the juvenile leech has about a week to find a suitable fish host ...
These leeches have five pairs of eyes, with the last two separated by two eyeless segments. The family is monotypic , containing only the subfamily Haemadipsinae , though as the family can apparently be divided into two or three distinct lineages, at least one of the proposed splits , while not a distinct family, might be a valid subfamily.
The total solar eclipse will stretch across the country on April 8. Observers must protect their eyes with specialized solar filters.
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Like other leeches, H. verbana has anterior and posterior suckers that allow it to attach to a range of substrates in both air and water. It can even attach to porous, air-permeable substrates. In the wild, this ability may be relevant for attaching to porous rocks or the furry skin of host animals.
Do your eyes hurt after watching the solar eclipse? Have a headache? Staring at the sun without protection can cause permanent damage. Here are signs to watch for.
Aquatic leeches have been found on sites such as the nose, mouth, pharynx, larynx, conjunctiva, trachea, bronchi, esophagus, vagina, bladder, rectum, and the creases of the eyes, [4] Although most instances were found in the nasopharynx, lower airways, or upper esophagus. Humans become victims from bathing or drinking unfiltered water in less ...