For Ark ultimate mobile edition player:

I tamed two rhyniognatha.

#First Implantation

Host Creature: Bronto

Host Level: 253

Host Health: 43,499

Rhyniognatha Level Used: 135

Resulting Baby Level: 176

Resulting Baby Health: 7,588

# Second Implantation

Host Creature: Bronto

Host Level: 234

Host Health: 34,832

Rhyniognatha Level Used: 125

Resulting Baby Level: 158

Resulting Baby Health: 9,016

My first brontod craving were - gasoline, achitina paste, 2 fria curry.

My second brontos carving were. - 2 carcha eggs, 1 exceptional kibble, ammonite bile, caline stew.

I think the craving matters for good stats.