The average heat cycle for a dog is approximately 3 weeks and since  this an an average, some heats are shorter (as little as 7-10  days), others are longer (4 weeks or more â¦).    Average times between heat periods is seven months but some dogs  can cycle as early as every 4 months, some once a year.   Lengths of heat cycles and intervals between cycles are different  for each dog but most dogs hit somewhere close to the averages.  Average times between heat periods is seven months but some dogs  can cycle as early as every 4 months, some once a year.    Lengths of heat cycles and intervals between cycles are different  for each dog but most dogs hit somewhere close to the averages.
Carseats and boosters should NEVER be installed in side-facing jump seats. Unfortunately, that means that children under 8 years old (about 80 pounds) should not ride in these types of seats. Children should never ride in the cargo area of a pickup. Rear-facing seats in wagons vary.
New guidelines for car-seat use published today by the American Academy of Pediatrics should make that easier â but, from a kidâs perspective, much more onerous. The detailed document says, in short, that all children should sit in the back seat until theyâre 13 years old. Babies and toddlers should remain in rear-facing car seats until theyâre two years old (or until theyâve outgrown the height and weight specified by the manufacturer of their particular rear-facing seat).