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Fetal resorption (also known as fetus resorption) is the disintegration and assimilation of one or more fetuses in the uterus at any stage after the completion of organogenesis, which, in humans, is after the ninth week of gestation.
The Bombini are a tribe of large bristly apid bees which feed on pollen or nectar.Many species are social, forming nests of up to a few hundred individuals; other species, formerly classified as Psithyrus cuckoo bees, are brood parasites of nest-making species.
Bombus sylvestris, known as the forest cuckoo bumblebee [3] or four-coloured cuckoo bee, [4] is a species of cuckoo bumblebee, found in most of Europe and Russia. [5] Its main hosts are Bombus pratorum, Bombus jonellus, and Bombus monticola. [6] As a cuckoo bumblebee, Bombus sylvestris lays its eggs in another bumblebee's nest. This type of bee ...
Specimen. Bombus citrinus is a species of bumblebee known commonly as the lemon cuckoo bumblebee due to its lemon-yellow color. [2] It is native to eastern North America. [1]This is a cuckoo bumblebee, one that invades the colonies of other bumblebees, kills the resident queen, and takes control over the population of workers inside.
Up to the 13th week of pregnancy, the risk of miscarriage each week was around 2%, dropping to 1% in week 14 and reducing slowly between 14 and 20 weeks. [ 157 ] The precise rate is not known because a large number of miscarriages occur before pregnancies become established and before the woman is aware she is pregnant. [ 157 ]
Bombus huntii is a species of bumblebee. It is native to western North America, where it occurs in western Canada and the United States as far east as Manitoba and Minnesota, and in Mexico as far south as the Trans-Mexican Volcanic Belt. [1] It is known commonly as the Hunt bumblebee [1] or Hunt's bumblebee. [2]
Bombus vancouverensis, the Vancouver Island Bumblebee, [2] is a common species of eusocial bumblebee of the subgenus Pyrobombus. B. vancouverensis inhabits mountainous regions of western North America, where it has long been considered as a synonym of Bombus bifarius, and essentially all of the literature on bifarius refers instead to vancouverensis. [3]
Bombus morrisoni is a species of bumblebee. It is native to western North America, including the western United States and British Columbia. It is known commonly as the Morrison bumblebee. [1] This bee lives in open scrub habitat. It nests underground and aboveground in structures and grass hummocks.