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Both male and female parents have been observed to do this, as well as sterile worker castes in some eusocial animals. Filial infanticide is also observed as a form of brood reduction in some birds species, such as the white stork. [45] This may be due to a lack of siblicide in this species. [46]
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 ...
The higher frequency in common marmosets may be due to a variety of social, reproductive, and ecological characteristics - including higher likelihood for overlapping pregnancies and births (due to short intervals between births), habitat saturation, and lower costs of infant care compared to other callitrichids - that increase the chance of ...
Due to the reproductive behavior of female cheetahs, males are unlikely to commit infanticide. Unlike other African felids, no infanticidal behavior has been observed in the cheetah . [ 13 ] Scientists hypothesize that this is because many cheetah litters have cubs from different fathers and males would not want to kill any cubs in case they ...
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 ...
The genetics and abortion issue is an extension of the abortion debate and the disability rights movement.Since the advent of forms of prenatal diagnosis, such as amniocentesis and ultrasound, it has become possible to detect the presence of congenital disorders in the fetus before birth.
Some animals starve to death shortly after birthing their young while others are eaten by their own young -- but these mothers make the ultimate sacrifice. Click through for 10 animal mothers that ...
The term foetal death applies variably in different countries and contexts, sometimes incorporating weight, and gestational age from 16 weeks in Norway, 20 weeks in the US and Australia, 24 weeks in the UK to 26 weeks in Italy and Spain. [32] [33] [34] A foetus that died before birth after this gestational age may be referred to as a stillbirth ...