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Research Article Open access CC BY 4.0

The Crespo Scale: Categorising 'Dangerous' Animal Species with Two Quantifiable Factors

David Duarte Crespo

Asian Journal of Research in Zoology · pp. 42–51 · Published 8 Apr 2024

10.9734/ajriz/2024/v7i2148

Abstract

Throughout our history, humanity and the kingdom Animalia have been in conflicts with both sides sharing countless casualties as the outcome. Among animals, adult female mosquitoes of the Anopheles genus are infamously labelled the deadliest to humans in terms of the number of deaths they cause each year. In this scientific paper, an analysis is given over what other direct and indirect factors can be considered when classifying a species of animal as 'dangerous'. It discusses and concludes exactly why they make it more of a danger to human health and safety than others. This is done utilising a brand-new, categoric scale — which has been dubbed the "Crespo scale" — created and designed to categorise all animal species from categories 1–5. One posing the least danger and five the most. The categorisation is performed by examining factors relevant to the animals themselves, which include the estimated Population Size (PS) and Mortality Rate (MR). The hypothesis is that species possessing a larger PS and a higher MR will be placed further up on the scale and thus are more likely to be a threat. Ultimately, both PS and MR are quantifiable factors that can be used to measure and categorise a species' level of danger in a less biased and more accurate, consistent way. However, the factor of MR can often be indirectly influenced by human-related factors that apply to the human development of a country and its general populace.

Danger fatalities mortality rate population size probability threat

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