Cane toads were introduced as an invasive species to eat the beetles that were destroying the sugarcane.
But the cane toads was successful invasive specie because it did not eat the beetles and moreover it started disturbing the ecosystem as it was highly poisonous and killed the predators that feed on them.
The offspring gets half of the required chromosomes from each parent. Human parents would give 23 chromosomes to their child as 23 + 23 = 46 chromosomes.
