const petsLists = [
    { name: 'Dog', age: '4' },
    { name: 'Cat', age: '6' },
    { name: 'Finches', age: '8' },
    { name: 'Hamster', age: '1' },
    { name: 'Squirrel', age: '2' },
    { name: 'Betta Fish', age: '0.5' },
];

petsLists.forEach( function(element) {
 
    console.log( element.name );
 
});