Maternity - Dolphin Research Center
During the mid 1980s, peers within the marine mammal care industry instituted a voluntary agreement to refrain from taking any more common bottlenose dolphins from the wild. Part of the reasoning behind such an agreement was due to how well common bottlenose dolphins breed in human care. Dolphin … See more
Dolphins have no secondary sex characteristics. The only way to determine a dolphin’s gender in the wild is to see a clear view of their … See more
There is no actual mating season for dolphins. They mate 365 days a year. Ninety percent of their mating activity, however, is foreplay. … See more
Female dolphins have a bicornate uterus, meaning they have two internal reproductive horns that each act as uteri ( Harrison 1969). It is thought to be a possible evolutionary … See more
Dolphins must maintain a streamlined body to move efficiently through the ocean. Therefore, male dolphins have their penis and testicles packed inside their body. On mammals, testicles are usually found outside the body since sperm dies at body … See more
Reproductive physiology of dolphins - ScienceDirect
Jan 1, 2024 · Anatomy of the pregnant dolphin reproductive tract showing the outline of the uterus with a fetus in the uterine horn. Illustration by Uko Gorter.
Pregnancy and Fetal Development: Cephalic Presentation and …
A Study of the Head during Prenatal and Perinatal Development of Two Fetuses and One Newborn Striped Dolphin (Stenella coeruleoalba) Using Dissections, Sectional Anatomy, CT, …
Embryo and fetal position during pregnancy by …
In most of dolphin pregnancies, the fetus is located in the left horn and the right one contains only the tail and part of the allantois . As the results of the present study, three out of six fetuses would be located in the left uterine horn and …
How Dolphins Reproduce - Homeostasis Lab
Oct 1, 2023 · Researchers can analyze hormone levels in dolphin samples, revealing information about ovulation, pregnancy, and hormonal changes during different reproductive stages. These multifaceted approaches combine to …
Ultrasound Examination of the Female Black Sea Bottlenose Dolphin
The studies we were able to determine pregnancy in females of the Black Sea bottlenose dolphins using ultrasound examination in the embryonic and fetal periods of its course, reveal dynamic …
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Atlantic bottlenose dolphin - University of California, …
Progesterone and estrogen determinations have been reported in pregnant and nonpregnant dolphins (Sawyer-Steffan et al. 1980, 1983). A complete review of the current status of hormonal measurements and the reproductive anatomy …
New Technique Allows Dolphin Pregnancy …
Jan 7, 2020 · But in a groundbreaking study just published in Veterinary Radiology & Ultrasound, scientists have developed a new ultrasound technique for evaluating dolphin fetuses at all …
Dolphin Reproduction and Parenting
The bottlenose dolphin pregnancy lasts about twelve months, and there is usually at least three years between births. Female dolphins often seem to take on the role of “midwife” during a birth have, and others also act as baby-sitters. …
Ultrasonographic findings associated with normal …
Jan 3, 2020 · From 2010 to 2017, serial ultrasonographic evaluations of 12 healthy dolphins were performed over the course of 16 pregnancies. A total of 203 ultrasound examinations were included in the study. Several metrics were …
