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In primitively eusocial bees (where castes are morphologically similar and colonies are small and short-lived), queens frequently nudge their nest mates and then burrow back down into the nest. This draws workers into the lower part of the nest where they may respond to stimuli for cell construction and maintenance. [ 94 ]
After their first year, young beavers help their families with construction. [9] Beavers sexually mature around 1.5–3 years. [24] They become independent at two years old, but remain with their parents for an extra year or more during times of food shortage, high population density, or drought. [96] [97]
After the chick no longer needs their care, approximately 85% of parents will part ways and typically find a new partner every breeding season. [51] [52] [53] Hornbills are a socially monogamous bird species that usually only have one mate throughout their lives, much like the prairie vole. The female will close herself up in a nest cavity ...
The Eurasian beaver (Castor fiber) or European beaver is a species of beaver widespread across Eurasia, with a rapidly increasing population of at least 1.5 million in 2020. The Eurasian beaver was hunted to near-extinction for both its fur and castoreum , with only about 1,200 beavers in eight relict populations from France to Mongolia in the ...
Extra-pair copulation in men has been explained as being partly due to parental investment. [7] Research has suggested that copulation poses more of a risk to future investment for women, as they have the potential of becoming pregnant, and consequently require a large parental investment of the gestation period, and then further rearing of the offspring. [7]
Castoreum. Castoreum / k æ s ˈ t ɔːr i ə m / is a yellowish exudate from the castor sacs of mature beavers used in combination with urine to scent mark their territory. [1] [2]Both beaver sexes have a pair of castor sacs and a pair of anal glands, located in two cavities under the skin between the pelvis and the base of the tail. [3]
Male beavers secure their offspring along with the females during their first few hours of their lives. As the young beavers mature, their fathers will teach them how to search for materials to build and repair their own dams, before they disperse to find their own mates. Wolf fathers help feed, protect, and play with their pups. In some cases ...
The mountain beaver (Aplodontia rufa) [Note 1] is a North American rodent.It is the only living member of its genus, Aplodontia, and family, Aplodontiidae. [2] It should not be confused with true North American and Eurasian beavers, to which it is not closely related; [3] the mountain beaver is instead more closely related to squirrels, although its less-efficient renal system was thought to ...