A million years into the future, where the remains of our fractured civilization remain, everyday animals have adapted rapidly the new harsh environment. With the world being now mostly dominated by birds. The polar caps have almost completely melted, and there is little arctic life. All primates have gone extinct, and mammals in general are becoming scarce. Large reptilians and amphibians rule the lakes and swamps, small mammals have retreated to forested environments, and there is an exponential boom in insect populations. The aquatic life is very low, but octopi are very abundant. The planet is now 3x warmer, and the continents have barely moved. Noticeable changes are that most lowland areas have been flooded into swamps. Trees are now booming as nothing is there to cut them down. Plastic is still in the oceans, but most aquatic creatures have adapted to avoid it. Whales are also slightly smaller. RULES: MUST be a descendant of a modern day animal absolutely no OP creatures No kaiju sized things No primates Elaborate on why your creature has adapted specific adaptations. Make it plausible Don’t go extremely crazy with the adaptations, as this is only a few thousand years after primates disappeared.