Scientists analyzed over 9,000 research papers and concluded that only a few animal individuals reach old age, which can negatively impact ecosystems.
Elderly animals, such as elephants and orcas, possess valuable cultural knowledge and support the social structures of their groups. For example, older female elephants are better at recognizing threats, while post-menopausal orcas find better fishing spots.
The destruction of these long-lived individuals can lead to population instability and even extinction. Researchers emphasize the importance of preserving older individuals to maintain ecosystem health. Kulum Brown from Macquarie University notes that the catch of large fish reduces the collective memory of the population.
It is essential to consider the value of elderly animals and develop strategies for their protection to ensure ecosystem resilience.
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