Dogs

Grass eating is common and usually normal dog behaviour, not a sign of illness — fewer than 25% of dogs vomit afterwards and only about 10% show signs of illness first. Source: Why Do Dogs Eat Grass? Should You Worry?

Usually no — for an instinctive grazer that is otherwise well, behaviour modification may do more harm than good. Redirect with a treat or a 'leave it' cue, and see a vet if it becomes frequent or comes with other symptoms. Source: Why Do Dogs Eat Grass? Should You Worry?

Coprophagia is common — around one in four dogs has been seen doing it — and more often behavioural than medical, though medical causes such as parasites, malabsorption or appetite-driving conditions must be ruled out first. Source: Why Do Dogs Eat Poop? (Coprophagia Causes & How to Stop It)

A resting breathing rate of 20–35 breaths per minute is normal; 40–60 or more is very concerning. If panting does not settle within minutes of rest, or happens at rest or at night, treat it as a problem. Source: Why Is My Dog Panting So Much?

When it comes with suspected toxin ingestion, collapse, loss of consciousness, weakness, disorientation or breathing difficulty — call the vet or a pet poison helpline immediately for suspected poisoning, and always notify the vet after a seizure. Source: Why Is My Dog Shaking? 7 Causes (And When It's an Emergency)