Search results
Results From The WOW.Com Content Network
Diplocardia meansi, the Means's giant earthworm, or Rich Mountain giant earthworm, is a species of earthworm endemic to the United States. It is the second longest earthworm in North America. It was discovered by D. Bruce Means on June 11, 1973, in Polk County, Arkansas. [1] and later described by Gates in 1977.
Criodrilidae species (criodrilids) are found in mud next to lakes and waterways (cf. North American Sparganophilus). They feed in the low-oxygen mud and organic material, but with their highly vascularized posterior region on or near the surface. Criodrilus has no accepted common name; Criodrilus bathybates is the Lake Biwa earthworm.
Oligochaetes are well-segmented worms and most have a spacious body cavity (coelom) used as a hydroskeleton.They range in length from less than 0.5 mm (0.02 in) up to 2 to 3 metres (6.6 to 9.8 ft) in the 'giant' species such as the giant Gippsland earthworm (Megascolides australis) and the Mekong worm (Amynthas mekongianus).
They are true earthworms, having a complex vascular system with capillaries and having the male pores far behind the female pores. They were at one time placed in the earthworm family Glossoscolecidae, but at present are considered to constitute their own family. Sparganophilus species are commonly found in mud next to rivers and streams. They ...
Earthworms are environmental indicators of soil health. Earthworms feed on the decaying matter in the soil and analyzing the contents of their digestive tracts gives insight into the overall condition of the soil. The earthworm gut accumulates chemicals, including heavy metals such as cadmium, mercury, zinc, and copper. The population size of ...
Marine worms are known to inhabit many different environments, having been found in both fresh and saltwater habitats globally. [citation needed] Some marine worms are tube worms, of which the giant tube worm lives in waters near underwater volcanoes and can withstand temperatures up to 90 °C (194 °F). They share this space with fellow ...
Image courtesy University of Oklahoma. The study says the new bee is the only species in the genus Andrena that has taken a liking to Solanaceae plants, or plants in the tomato family.
Earthworms store their partners' sperm in spermathecae ("sperm stores") and then the clitellum produces a cocoon that collects ova from the ovaries and then sperm from the spermathecae. Fertilization and development of earthworm eggs takes place in the cocoon. Leeches' eggs are fertilized in the ovaries, and then transferred to the cocoon.