Imumoslontus ovivenator

From OurFoodChain




As the species Oslontus abyssus ate detritus from the lakebed, it was inevitable some would accidentally eat the eggs of Cynopsis ovirapatator (which lay their eggs in the sediment in the deepest parts of the lake). Because this species contain toxins even when they are eggs, many O. abyssus died quickly from being poisoned, but individuals that had a minor tolerance were able to survive, and even gain more nutrients from this diet then the detritus that they regularly ate. Overtime, a population of O. abyssus would develop a higher and higher tolerance for the toxins in these eggs and begin taking advantage of them as a food source, becoming a new species.


7-9 centimeters long
Originates in zone 23


in terms of general appearance, they are nearly identical to their ancestors, being only slightly larger due to their more nutritious diet. Their chemoreceptors have become slightly specialized, able to detect the unique chemical odors given off by eggs which they primarily feed on. The barbs on their lower jaws serve an almost identical purpose of their ancestor, which is to filter out organic matter that they scoop out of the sediment.


The largest difference from their ancestor is indeed their taste for eggs. While they regularly prey on the eggs of O. abyssus that get replenished once a month, they will also prey on the eggs of C. ovirapatator which yet again get replenished once a month. The species spends most of their time wiggling along the sediment until they detect a high amount of eggs, where they will then use the feeding tactic of their ancestors to devour them.


While the eggs of C. ovirapatator are more nutritious than the eggs of O. abyssus, they are also poisonous and block the passage of sodium ions by binding to the sodium channels within the victim’s body. To counter this, O. ovivenator developed a higher number of binding sites on the sodium channels so that it takes a higher dosage of the toxin order to block all sodium ions from getting through. While it means they can safely eat some of the eggs, overeating the eggs of this species will result in the toxin buildup to take effect on their bodies.


The reproduction of O. ovivenator is pretty much unchanged from its ancestors, sexually reproducing in large "orgies" with males and females mating with multiple partners once a month. The wombs females use to store unfertilized eggs before releasing them while mating also persist, typically producing around 180-200 eggs on average. The higher nutrient-filled diet of O. ovivenator allow them to mature quickly, taking only two and a half weeks to get to adult size. Because of their egg-eating habits, the species often commit filial cannibalism; where they consume their own eggs on accident and thus keeping their numbers in check.