THE SMART TRICK OF RIDDLES THAT NOBODY IS DISCUSSING

Q: My pores and skin is environmentally friendly and slippery, I have 4 legs and webbed toes, I hop on land and swim underwater, I love bugs and minimal fish to try to eat. What am I?Issue: Completely transform the word "CAT" to the word "Doggy" by switching a person letter at a time, with Each and every step leading to a sound English word.d) 3 t