Cattle never feed on the leaves of Calotropis because of the presence of these chemicals
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Plants like \textit{Calotropis} develop chemical defenses such as \textbf{cardiac glycosides} to avoid being eaten by herbivores. These compounds are toxic and can affect heart muscles.
\textit{Calotropis} contains toxic compounds known as cardiac glycosides, which are harmful to herbivores. These substances interfere with heart function, deterring cattle and other animals from grazing on the plant.