63, and in either case, can accelerate sex chromosome divergence. For example, in an achiasmate species, the emergence of a nascent sex determining factor leads to instantaneous recombination suppression along the entire length of the sex chromosomes. Similarly, when achiasmy follows quickly after...
If the nest fails in mid-April, crows will try to mate again. "But, if it fails in mid- to late May, they don't," McGowan said. That may be because crow young depend on parents for food for about a month and a half after they leave the nest. They follow the parents around ...
If given the opportunity, a female dragonfly might mate with multiple partners, but the sperm from her final sexual partner will fertilize her eggs, in most cases. Maledragonflies, therefore, have an incentive to make sure their sperm is the last to be deposited in her. A male dragonfly c...
Honey bees mate during flight, the new queen who is roughly 6-16 days old, takes to the skies to meet her suitors or drone bees (who are assigned the only job to mate with the queen). She eventually mates with 10-20 drones after which they die as their appendage or endophallus is ...
Honeybees are fascinating: Each bee colony can house as many as 80,000 bees during the busy flowering season. Each colony has a single queen—the only sexually developed female of the colony—whose primary job is to mate with male "drones" in her colony and lay eggs. ...
Many insects use extensivecourtship ritualsto choose their sexual partners. Some flying insects can even mate midflight. To do so, the winged insects have a unique sex organ for the task. After a successful courtship, copulation occurs when the male inserts part of his penis, also known as ...
The queens of eusocial ants, bees, and wasps only mate during a very brief period early in life to acquire and store a lifetime supply of sperm. As sperm c... B Baer,J Collins,K Maalaps,... - 《Ecology & Evolution》 被引量: 14发表: 2016年 The distribution of thelytoky, arrhe...
Many fruits and vegetables can’t produce a crop without help from pollinating insects such as bees, hoverflies, and butterflies. Are you getting enough of them? How do you persuade these essential bugs into your garden? Unlike animals, plants can’t move around to find a mate, so they ha...
However, naïve honey bees were equally attracted to the scent of both sexes36. Remarkable qualitative intersexual differences in floral scents were also found by Okamoto and collaborators37 in their detailed study of sexual dif- ferences in floral scent of the monoecious species of the tribe ...
Here's how to raise your caterpillar to a butterfly or moth. This article gives advice on feeding and caring for your caterpillar.