Animals do not lack the language to let us know what they need. Most Humans Do lack the "language" to understand animals. Animals are Always in constant communication with their environment. Humans are part of their environment. Most Humans have zero or close to zero ability or even desire to learn to understand animals language.
Read, feel, listen, utilize your scent glads, interocept, learn. If you actually paid attention to your animals, you would instantly know what they need to feel comfortable and happy.