5 Animals That Menstruate Just Like Humans

1. Chimpanzees

• Similarity to Humans: Female chimpanzees have menstrual cycles, lasting about 28 to 35 days, just like ours¹.
• Menstruation Process: If they don’t become pregnant, they shed their uterine lining and experience a period.
• Lighter Periods: Unlike humans, chimpanzees tend to have lighter periods with less blood loss.

2. Bonobos

• Similarity to Humans: Bonobos’ menstrual cycle is similar to both humans and chimpanzees, occurring every 32 to 35 days¹.
• Menstruation Process: Like chimpanzees, they also shed their uterine lining.
• Clear Indication: Bonobos’ menstruation provides a clear indication of their similar reproductive process.

3. Baboons

• Menstruation in Baboons: Female baboons have a menstrual cycle lasting from 30 to 40 days¹.
• Lighter Periods: Their periods are often lighter than those of humans, but the process of shedding the uterine lining is quite similar.

4. Elephants

• Unique Non-Primate Menstruators: Elephants are one of the few non-primate mammals that menstruate¹.
• Cycle Details: Although less frequent, their menstruation occurs periodically.
• Fascinating Fact: Elephants’ reproductive biology continues to intrigue researchers.

5. Bats

• Surprising Menstruators: Bats also menstruate¹.
• Less Known Fact: While not as well-studied, their reproductive process involves shedding the uterine lining.
• Diverse Species: Bats exhibit a wide range of reproductive adaptations.

¹: Source .

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