array-example.js

// This is your original array:
const animals = ['panda', 'turtle', 'giraffe'];

function convertToBaby(animalsArray){
  // Start with an empty array. You will populate these in your loop:
  const babyAnimals = [];
  // Since it specifically asks for a loop:
  for(var i = 0 ; i < animals.length ; i++){
    // push() basically adds something at the end of an array:
    babyAnimals.push(`baby ${animalsArray[i]`)
  }
  return babyAnimals
}

convertToBaby(animals);