Use this syntax, IMHO it's a LOT more readable:
define(function(require) {
var $ = require('jquery'),
Handlebars = require('handlebars'),
Backbone = require('backbone'),
MyModel = require('mymodel'),
MyControllerAnimals = require('mycontrolleranimals');
Also require.js comes with an optimizer that automatically concatenates all required files (and no more!) minifies them and you don't have to worry about script order. Also using the text plugin you can package templates (text files) along with the rest of the scripts.