Having kids is no walk in the park, but if you thought your childhood wasn't perfect,

just wait until you hear about some of the stuff that goes down in the animal kingdom.

For mothers encouraging sibling violence to sneaky abandonment tactics,

and even hungry mom is chowing down on their own spot for lunch,

coming up are some of the worst animal parents around.

Cuckoos are some of the most infamous bad mothers in the entire animal kingdom.

For these birds, the stress of parenting is just too much to take on. So to avoid all the hassle, they abandon their kids before they're even born.

When she's ready to lay an egg, a female cuckoo will swoop into the unattended nest of a smaller species.

She will then swallow one of the eggs that's been laid there

and lay one of her own in its place. This behavior is known as brood parasitism, and it's one

seriously sneaky tactic. By leaving her own egg in another bird's nest, Mama Kuku shifts

the responsibility of raising her young to another

unsuspecting mother and unburdens herself in the process. Bring herself up to go and live life

as a sexy single bird again. Unfortunately for her victims, the Kuku chickoo chick is hardly a welcome

addition to any nest. In fact, this imposter chick usually hatches earlier

and grows faster than the other bird's real brood, forcing the smaller chicks out of the nest

where they will likely die. Sometimes the targeted birds revolt. The parents that inhabit the nest

may mob to stop her from dropping off her egg. Alternatively, they

might even push the cuckoo eggs out before they hatch or abandon the nest altogether. But more often than

not, the cuckoo mom gets away with her evil scheme undetected, leaving her victim with another big, greedy

mouth to feed. Man, nature really is hardcore sometimes. For such small critters,

burying beetles have some fearsome mothering tactics. True to their name, these endangered black and

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