TABLE 1.

Litter and group size, including number of pups at the level of litter, group, and experiment.

Litter ID	Group	No. of pups
1	Prolonged Oxy	5
2	Prolonged Oxy	4
3	Prolonged Oxy	3
4	Prolonged Oxy	6
5	Prolonged Oxy	6
Total:		24
6	In utero Oxy	5
7	In utero Oxy	6
8	In utero Oxy	6
9	In utero Oxy	6
10	In utero Oxy	6
Total:		29
11	Prolonged Veh	6
12	Prolonged Veh	6
13	Prolonged Veh	6
14	Prolonged Veh	6
15	Prolonged Veh	6
Total:		30
16	In utero Veh	5
17	In utero Veh	6
18	In utero Veh	3
19	In utero Veh	6
20	In utero Veh	5
21	In utero Veh	3
Total:		28
	Total pups:	111