Seahorses

Seahorses are remarkable since they belong to the male-pregnant Syngnathidae family. Seahorses have a pouch where females deposit eggs. Once placed, the male fertilises and incubates the eggs for 45 days until they hatch. 

Marmosets

Marmosets are adorable, but males take their duty as fathers seriously. The average marmoset dad grooms, feeds, and gives piggyback rides to his baby children, while the mom becomes indifferent after a few weeks. 

Emperor penguins are dedicated parents. Females must eat for two months after laying an egg. In Antarctica, the father must keep the egg warm. Dad keeps the egg for two months between his foot and brooding pouch. 

Emperor Penguins

Male rheas incubate the female's eggs like emperor penguins. Male rheas, ostrich-like ratites, court up to 12 females. Even with roving eyes and several mates, male rheas never abandon their young.

Rheas

Arowanas

Among fish, father arowanas show the most paternal care. Arowanas are mouthbrooders, carrying their marble-like eggs in their mouths until they hatch. Even after hatching, arowana fathers continue to hold hundreds of juvenile fish in their mouths. 

Male jacanas build nests, incubate eggs, and raise babies. Male jacanas are faithful homemakers, staying with the nest long after the females have migrated. They're such loyal fathers that they'll care for other males' eggs. 

Jacanas

Frogs and toads are maybe the most devoted parents. Frog males frequently refuse to eat until their tadpoles can survive on their own. Other frog dads lodge their spawn in their skin, like the midwife toad. 

Frogs

Despite being apex predators, male wolves are attentive, monogamous, and fiercely protective dads. A wolf pack has a male, female, and their cubs. After giving birth, a female wolf doesn't leave her den for weeks. 

Wolves

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