These Death-Defying Salmon Just Keep Spawning

The video explores reproductive strategies in animals, focusing on iteroparity and semelparity. It highlights the life cycles of Pacific and Atlantic salmon, emphasizing the perilous journey of Pacific salmon, which often ends in death after spawning. In contrast, some Atlantic salmon, known as kelts, survive to spawn multiple times. The video discusses the genetic and environmental factors influencing these differences and the importance of understanding these processes for conservation efforts.

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