In terms of raw lethality measured by $ ext{LD}_{50}$ value, how does the Yellow Cobra's venom compare to the Black Mamba's?
It can be more toxic by mouse weight
When analyzing the raw lethality of snake venoms using laboratory metrics like the $ ext{LD}_{50}$ value (which measures toxicity based on mouse weight), the venom of the Cape Cobra is exceptionally potent, often exceeding that of the Black Mamba (*Dendroaspis polylepis*). However, this comparison is nuanced by other factors. While the *Naja nivea* venom may register higher in raw toxicity testing, the Black Mamba generally injects a substantially larger volume of venom during a typical defensive bite. Furthermore, the Black Mamba is known for greater aggression when cornered, often leading to more severe clinical outcomes in real-world encounters, despite the potentially higher initial potency of the Yellow Cobra's toxin cocktail.

#Videos
Cape Cobra (Naja nivea) | Herping South Africa - Montagu - YouTube