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Some females abort or resorb their own young while they are still in development after a new male takes over; this is known as the Bruce effect. [31] This may prevent their young from being killed after birth, saving the mother wasted time and energy. However, this strategy also benefits the new male.
Some rodent species (most typically males) will take the chance to kill neonates that are unrelated to them should opportunity permit. There is thought to be several benefits by doing so, which not only include nutrition benefits (particularly where food is in short supply [8]) but also non-direct benefits, such as allowing access to more resources, improving reproductive opportunities and the ...
Natal homing, or natal philopatry, is the homing process by which some adult animals that have migrated away from their juvenile habitats return to their birthplace to reproduce. This process is primarily used by aquatic animals such as sea turtles and salmon , although some migratory birds and mammals also practice similar reproductive behaviors.
Approximately 3 days after giving birth, subordinate females return to the group to help rear the breeding female's pups, at which time the dominant female is no longer aggressive toward them. By inducing the stress response in subordinates, the breeding female disrupts the ovulatory cycle and prevents mating of the subordinate females, or ...
A boa constrictor in the U.K. gave birth to 14 babies — without a mate. The process is called parthenogenesis, from the Greek words for “virgin” and “birth.” It tends to occur in ...
“None of them received any care attempting to save their lives, and most of them didn’t receive basic comfort care either,” Kirk added. Under Gov. Tim Walz's watch, at least eight babies ...
Infanticide in non-human primates occurs as a result of exploitation when the individuals performing the infanticide directly benefit from consumption or use of their victim. [1] The individual can become a resource: food ( cannibalism ); a protective buffer against aggression, or a prop to obtain maternal experience.
The law did not include exemptions for congenital anomalies, including conditions that will cause a newborn to die soon after birth. The new study compared infant death rates in Texas from 2018 to ...