Animal Parenting

These Primates Always Have Twins

November 4, 2020 0

The New World monkeys of Central and South America, tamarins and marmosets, are the main groups of cooperatively breeding primates. These are collectively known as callitrichids, and they inhabit many areas of Central and South […]

Animal Parenting

The Importance of Colostrum

October 28, 2020 0

Milk pretty much picks up where the placenta left off in terms of how a mammalian infant is provisioned by its mom. The most energetically demanding time for infants, the period just after birth, coincides […]

Animal Reproduction

Hermaphrodites in the Animal Kingdom

October 21, 2020 0

As members of a species with separate sexes, humans tend to forget about the suite of organisms out there that are hermaphrodites, simultaneously carrying male and female genitalia. Hermaphroditism is present in 24 of the […]

Animal Reproduction

Pausing Pregnancy: Diapause In Mammalian Species

October 14, 2020 1

You may operate under the false impression that once a sperm has met with an egg and created an embryo, the process cannot be paused and restarted. However, the physiology of many mammalian and primate […]

Animal Reproduction

Cooperatively Breeding Hyenas And The Alpha Female(s)

October 7, 2020 1

Whereas most human females make up their minds to become pregnant outside of the immediate influence of other females in their social group, this is not the case for cooperatively breeding mammalian species. Here, complex […]

Animal Nutrition

Maintaining A Balanced Diet As An Obligate Predator

September 30, 2020 0

As obligate predators, carnivores are faced with a tough task when it comes to maintaining a balanced diet. Although omnivorous animals such as cockroaches and humans can adjust the relative amounts of nutrition in their […]