Some animals pant and sweat to speed evaporation of body moisture and thus cool themselves.
A、wiggle摆动slowlyD
暂无解析
HowmanypeopleareawarethatadancerwiththeNewYorkCityBallettypicallywearsoutaminimumoftwohundredpairsoftoeshoesperyear?
Batsfly,ratherthanglide,andthusaretheonlymammalscapableoftrueflight.
Communicationisoneofthemostimportantbondsthatholdculturalsystemstogether.
Incalculatingthedailycalorierequirementsforanindividual,variationsinbodysize,physicalactivity,andageshouldbetakenintoaccount.
Someseaurchins海胆havevenomous(toxin)spines