What is a key life cycle difference between female Spiny Dogfish and female Smooth Dogfish?

Answer

Female Spiny Dogfish mature much later, around 12 or 14 years old.

Female Spiny Dogfish are very slow to mature, reaching reproductive age around 12 to 14 years, while female Smooth Dogfish mature considerably faster, around 4 to 5 years.

What is a key life cycle difference between female Spiny Dogfish and female Smooth Dogfish?

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All About Pacific Spiny Dogfish - Shark and Ray Awareness Day

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