No.
Only ungulates (cattle, antelop, deer) eat cud. Basically, they eat grass, but they cannot digest grass (no mammals can.) So they developed a system of outsourcing the job to somebody else.
They have symbiotic bacteria in a big pouch in their stomach. When they eat grass, the grass goes into the pouch. The bacteria eat the grass and multiplies enormously. Then the ungulates would belch out the lump of bacteria and chew it again. That is cud. It is high-protein, rich in minerals and very good food.
Rabbits simply do not have symbiotic bacteria pouch in their stomach, so they do not eat cud. Interestingly, The Bible (Levictus) wrongly described that rabbits chew cud.
Let it relax. The cow won't chew its cud unless it feels unthreatened and comfortable.
NO they do not
snowy owls are the ones that mostly eat Arctic hares
No. Calves don't eat their mom's cud, they drink or suckle milk from their mom.
yes
Of course, rabbits and hares are in the same family of Legamorphs.
yes
Yes.
Cape hares are eaten by small carnivores. Small spotted cats and larger cats also eat the cape hares. They take refuge in high grass and vegetation to avoid being seen.
Hares will eat meat only in desperate situations, however its digestive system was not designed to digest meat so it could make it ill.
Arctic Hares do not eat Lemmings nor do they eat any meat. Arctic Hares are herbivores which means they only eat vegetation. Lemmings are also herbivores.
They ruminate as in chew their cud.