This species of prehistoric dinosaur is noted for being very protective of its eggs, it makes its nests in deserts and canyons where it buries its eggs in sand to act as a nest. These eggs act as a great source of EVO points, but you have to go through the parents to collect the prize. Oviraptors have only medium health and subpar attacking power but they are quick, nimble, and will come in great hoards should you try to eat their eggs.
Also I have been thinking and I feel like to make EVO 2 even better we should offer more options.
One suggestion is the option to be an herbivore and collect evo points by eating plants, which are more plentiful but whose evo points scale based off the biome they are found in. An Insectivore which finds hidden out groves of insects giving large amounts of evo points but at the cost of collecting them at a slower rate overall. And Detrivores who gain evo points passively by just absorbing the nutrients of animal and plant remains, but at the cost of having more expensive upgrades therefore being slower to evolve. This way you don't just have to be a carnivore, increasing the options available overall.
Additionally here are some ideas to differentiate Arthropods and Plants from the Vertebrates
when playing as an Arthropods the game will make it easier to gain expensive upgrades at a cheaper rate during the beginning, however Arthropods can't gain permanant health ups from these upgrades and as is are quite frail at first. In order to gain permanent health upgrades they need to spend evo points on a molt command making them gain health but also make all other upgrades more expensive to purchase due to the larger size requiring more energy to evolve. It's a crutch character, an archetype that starts out powerful in the early game but may struggle in the endgame if not prepared correctly.
Plants on the other hand have two ways to get evo points, photosynesis or spore. By standing in the sun you can use photosynsesis to passively gain evo points to spend on upgrades, however due to plants not being designed for combat attacking in any way causes them to spend evo points, without evo points plants can't attack at all, becoming defenseless. This is especially dangerous as plants can't gain evo points during the night so its the choice of a more powerful build or a more survivable build. By investing in spores however you instead have to infect a creature to carry your spores, the spores will eventually kill the creature causing a clone of you to be created, this clone will have health scaled to the host creatures max health as well as gain a specific amount of evo points based off the size of the creature, the larger creatures need more spores to infect but have more health and evo points to give. You need to go from host to host as otherwise you can't gain evo points. When you die you respawn as your weakest form, but you keep all your upgrades, meaning that you have more survivability overall in the base form but its encouraged still to infect other creatures. I don't know if that would count as a separate Fungi class however.