Table:
Cardiac characteristics	PBS	Cocaine
Number of animals	8	8
Body weight (BW), gm	340.70 ± 33.40	319.50 ± 11.80
Whole heart weight (wet WHW), gm	1.51 ± 0.18	1.31 ± 0.18
WHW/BW (×104)	44.76 ± 7.14	41.21 ± 5.80

What are the following figure content in markdown style: | Cardiac characteristics | PBS | Cocaine | 
 | --- | --- | --- | 
 | Number of animals | 8

| 8 | 
 | Body weight (BW), gm | 340.70 ± 33.40 | 319.50 ± 11.80 | 
 | Whole heart weight (wet WHW), gm | 1.51 ± 0.18 | 1.31 ± 0.18 | 
 | WHW/BW (×104) | 44.76 ± 7.14 | 41.21 ± 5.80 |