Cownose rays take eight years to mature and produce only one embryo per female with a gestation period of 11-12 months. They are therefore highly susceptible to over-exploitation.

Cownose rays take eight years to mature and produce only one embryo per female with a gestation period of 11-12 months. They are therefore highly susceptible to over-exploitation.

Gestation Table for Cattle! It's still a good estimate, even though a Lowline's gestation period is only 270 days.

Gestation Table for Cattle! It's still a good estimate, even though a Lowline's gestation period is only 270 days.

Human mothers have a relatively long gestation period compared to the rest of the animal kingdom, but a few animal mothers go even further. Here's our list of t

Human mothers have a relatively long gestation period compared to the rest of the animal kingdom, but a few animal mothers go even further. Here's our list of t

"Giraffes have a gestation period between 400-460 days...With lions and other predators abound, the world is a dangerous place for baby giraffes when they first come into the world--part of the reason for the long delay." (via mnn.com)

"Giraffes have a gestation period between 400-460 days...With lions and other predators abound, the world is a dangerous place for baby giraffes when they first come into the world--part of the reason for the long delay." (via mnn.com)

The Placenta Rainbow highlights differences in mouse placental development that can result from manipulation of the mother’s immune system. These placentas were investigated at day 12 of the 20-day gestation period – the point at which a mouse’s placenta has gained its characteristic shape but is still developing.

The Placenta Rainbow highlights differences in mouse placental development that can result from manipulation of the mother’s immune system. These placentas were investigated at day 12 of the 20-day gestation period – the point at which a mouse’s placenta has gained its characteristic shape but is still developing.

"Pregnant elephant." Unknown source  "Elephants have the longest gestation period of all mammals, carrying their young for nearly two years before giving birth."

"Pregnant elephant." Unknown source "Elephants have the longest gestation period of all mammals, carrying their young for nearly two years before giving birth."

Illustrations of the 9month gestation period of a fetus for a brochure in Ad2. Color will be aplied (probably watercolor), but these are the base drawings     Please don't miss our unique baby nursery  ideas at www.CreativeBabyBedding.com

Illustrations of the 9month gestation period of a fetus for a brochure in Ad2. Color will be aplied (probably watercolor), but these are the base drawings Please don't miss our unique baby nursery ideas at www.CreativeBabyBedding.com

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