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Male mammals typically have rudimentary mammary glands and nipples, with a few exceptions: male mice do not have nipples, [60] male marsupials do not have mammary glands, [61] and male horses lack nipples. [62] The male dayak fruit bat has lactating mammary glands. [63] Male lactation occurs infrequently in some species. [64]
Adult females additionally have two teat-like projections on their abdomens, called pubic nipples or false nipples, which are not connected to mammary glands. Only a few other bat families have pubic nipples, including Hipposideridae, Craseonycteridae, Megadermatidae, and Rhinopomatidae; they serve as attachment points for their offspring. [19]
Unlike most bats, which bear only one pup per season, the western red bat can give birth to as many as four pups at once. [7] To compensate for larger litters, desert red bats have four nipples rather than two. The bats mate during August and September. Pups are born about 90 days after mating.
“Bats do a lot of extreme things during reproduction from storing sperm to extending the duration of a pregnancy,” she explained. There are few bat biologists, and most tend to focus on the ...
Females have four nipples, which allows them to nourish multiple offspring at once. Eastern red bat pups learn to fly about a month after being born, after which they are weaned. [12] Even after the pups have learned how to fly, they remain with their mother for a while before roosting on their own. [14]
Vampire bats, probably due to their diet of blood, are the only vertebrates that do not have the enzyme maltase, which breaks down malt sugar, in their intestinal tract. Nectivorous and frugivorous bats have more maltase and sucrase enzymes than insectivorous, to cope with the higher sugar contents of their diet. [86]
Bats are extreme when it comes to sound production and have a greater vocal range than singers like Mariah Carey and Prince, a new study suggests. Many animals produce sound to communicate with ...
The phenomenon of male lactation occurs in some species, notably the dayak fruit bat (Dyacopterus spadiceus), lesser short-nosed fruit bat (Cynopterus brachyotis), and the Bismarck masked flying fox (Pteropus capistratus). Lactating males may assist in the nursing of their infants. In addition, male goats are known to lactate on occasion. [5]