Castoronatator curbobeakus
Extinct (March 26th, 2020): loss of food (B. aciecrescus and B. flumuancoris)
- Ancestor: Castorocauda flumum
- Zone: 14
- Size: 16-21 cm (length)
- Reproduction: Sexual with internal fertilization. They lay around 25-30 eggs, which are laid under the soil of zone C and D. When these hatch, the babys dig up to the surface and start slithering to the water for safeness. The emerging babies are usually prayed upon by Podovolare velox and nearby passing A. fucopinna.
- Food/Sustenance: Seeds of B. aciecrescus and B. flumuancoris. The cuantity of nutrients the seeds have allow curbobeakus to grow slightly larger than its ancestor, C. flumum.
- Castorocauda curbobeakus lives in zone 14, rarely getting on land. Due to the fact that their new diet consists in the reinforced seeds of B. aciecrescus and B. flumuancoris, C. curbobeakus has developed a curved stronger beak that allows it to break the seed’s outer shell and eat the nutrient rich content inside of it. Its big tail fluke allows it to propel faster in water and the vestigial wings have gotten bigger and now serve as fins. Now that they inhabitate zone 14, they also expanded to the coasts of zone C that are near zone D. When they need to breathe the get their "beaks" out of the water to take a gulp of air.