Pups in the Womb | National Geographic

during the second half of gestation

during the second half of gestation development takes on a new and faster

development takes on a new and faster

development takes on a new and faster pace just four weeks from now all our

pace just four weeks from now all our

pace just four weeks from now all our pups will be quite distinct animals if

pups will be quite distinct animals if

pups will be quite distinct animals if they survive

dogs and wolves sometimes reabsorb their

dogs and wolves sometimes reabsorb their fetuses breaking down the growing embryo

fetuses breaking down the growing embryo

fetuses breaking down the growing embryo into nothing a small lump on the uterus

into nothing a small lump on the uterus

into nothing a small lump on the uterus wall may be all that is left

wolves evolved in harsh times with many

wolves evolved in harsh times with many predators so they developed a technique

predators so they developed a technique

predators so they developed a technique to maximize survival

it may seem counterintuitive but

it may seem counterintuitive but reabsorbing some fetuses means the

reabsorbing some fetuses means the

reabsorbing some fetuses means the surviving ones have a better chance if

surviving ones have a better chance if

surviving ones have a better chance if dogs get stressed the same thing can

dogs get stressed the same thing can

dogs get stressed the same thing can happen but their comfortable existence

happen but their comfortable existence

happen but their comfortable existence alongside people means they’re usually

alongside people means they’re usually

alongside people means they’re usually free enough of stress to carry a full

free enough of stress to carry a full

free enough of stress to carry a full litter