物种分类
哺乳纲长鼻目
寿命
60-70年
平均体型
雄性:2-7吨
雌性:2-5吨
分布区域
非洲
栖息地
森林、草原、刺丛以及半干旱的丛林
非洲草原象吃什么?

食草动物-草,树皮,树枝,植物果实。

非洲草原象行为特征是什么?

与人类非常相似,它们是群居动物,生活在小家庭群体中,通常由年长的雌性族长和几代女性亲戚组成。雄性一旦成熟,通常是独居的,但也可能生活在三到四头公象的小群中。它们照顾虚弱或受伤的成员,甚至似乎为死去的同伴感到悲伤。

大象的长鼻子有哪些神奇功能?为何其生存仍岌岌可危?

非洲象的存在有助于为许多其他物种维持合适的栖息地。在中非森林中,多达 30% 的树种可能需要大象来帮助传播和发芽。

大象的孕育和繁殖是一个缓慢的过程。

它们的怀孕时间几乎比任何其他哺乳动物都长。孕期约为 22 个月,母象通常每三到六年只产一头小象。它们的出生率平均每年为 5% 至 6%,而偷猎率为 8% 至 9%,导致种群数量净减少。如果偷猎活动继续有增无减,灭绝将是一个非常现实的威胁。

它们花很多时间进食。大象一天中的大部分时间都在长距离行走,觅食草、水果、根和树皮。它们一天可以吃掉多达 136 公斤的食物,喝掉 113 到 190 升的水。

大象有一个很长的鼻子,用于呼吸、嗅觉、饮水、吹号和抓取物体。象鼻能用泥土或水覆盖自己以保持水分。它们的象鼻尖端有两个手指状的延伸部分,用于抓住小物体。它们还用鼻子通过频繁地互相触摸和爱抚来表达爱意。

FreeMarker template error (DEBUG mode; use RETHROW in production!): Java method "org.springframework.web.servlet.support.RequestContext.getMessage(String)" threw an exception when invoked on org.springframework.web.servlet.support.RequestContext object "org.springframework.web.servlet.support.RequestContext@56e12f41"; see cause exception in the Java stack trace. ---- FTL stack trace ("~" means nesting-related): - Failed at: ${springMacroRequestContext.getMessag... [in template "system/spring.ftl" in macro "message" at line 28, column 22] - Reached through: @spring.message "labelAnimalServiceLi... [in template "animal/info.ftl" at line 78, column 29] ---- Java stack trace (for programmers): ---- freemarker.core._TemplateModelException: [... Exception message was already printed; see it above ...] at freemarker.ext.beans._MethodUtil.newInvocationTemplateModelException(_MethodUtil.java:292) at freemarker.ext.beans._MethodUtil.newInvocationTemplateModelException(_MethodUtil.java:264) at freemarker.ext.beans.OverloadedMethodsModel.exec(OverloadedMethodsModel.java:66) at freemarker.core.MethodCall._eval(MethodCall.java:62) at freemarker.core.Expression.eval(Expression.java:101) at freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:100) at freemarker.core.DollarVariable.accept(DollarVariable.java:63) at freemarker.core.Environment.visit(Environment.java:383) at freemarker.core.Environment.invokeMacroOrFunctionCommonPart(Environment.java:889) at freemarker.core.Environment.invokeMacro(Environment.java:825) at freemarker.core.UnifiedCall.accept(UnifiedCall.java:84) at freemarker.core.Environment.visit(Environment.java:347) at freemarker.core.Environment.visit(Environment.java:353) at freemarker.core.Environment.visit(Environment.java:353) at freemarker.core.Environment.visit(Environment.java:353) at freemarker.core.Environment.process(Environment.java:326) at freemarker.template.Template.process(Template.java:383) at com.juzhencms.apps.busi.web.BaseController.templateResult(BaseController.java:298) at com.juzhencms.apps.busi.web.SpeciesArchiveController.dwdaInfo(SpeciesArchiveController.java:176) at com.juzhencms.apps.busi.web.SpeciesArchiveController$$FastClassBySpringCGLIB$$d239b1b9.invoke() at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:779) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750) at org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:57) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:692) at com.juzhencms.apps.busi.web.SpeciesArchiveController$$EnhancerBySpringCGLIB$$bb3fc86d.dwdaInfo() at sun.reflect.GeneratedMethodAccessor1338.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1064) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) at javax.servlet.http.HttpServlet.service(HttpServlet.java:529) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) at javax.servlet.http.HttpServlet.service(HttpServlet.java:623) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:197) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142) at com.juzhencms.apps.base.common.filter.DataFilter.doFilter(DataFilter.java:49) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142) at org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:126) at org.springframework.boot.web.servlet.support.ErrorPageFilter.access$000(ErrorPageFilter.java:64) at org.springframework.boot.web.servlet.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:101) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) at org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:119) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:166) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:88) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:491) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:83) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:643) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:72) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:398) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:939) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1832) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:973) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:491) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) at java.lang.Thread.run(Thread.java:748) Caused by: org.springframework.context.NoSuchMessageException: No message found under code 'labelAnimalServiceListAnimalUstext' for locale 'en_US'. at org.springframework.context.support.AbstractMessageSource.getMessage(AbstractMessageSource.java:161) at org.springframework.context.support.AbstractApplicationContext.getMessage(AbstractApplicationContext.java:1373) at org.springframework.web.servlet.support.RequestContext.getMessage(RequestContext.java:703) at org.springframework.web.servlet.support.RequestContext.getMessage(RequestContext.java:669) at sun.reflect.GeneratedMethodAccessor1256.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at freemarker.ext.beans.BeansWrapper.invokeMethod(BeansWrapper.java:1552) at freemarker.ext.beans.ReflectionCallableMemberDescriptor.invokeMethod(ReflectionCallableMemberDescriptor.java:56) at freemarker.ext.beans.MemberAndArguments.invokeMethod(MemberAndArguments.java:51) at freemarker.ext.beans.OverloadedMethodsModel.exec(OverloadedMethodsModel.java:62) ... 81 more