{%extends "populations/base.html"%} {%block lvl3_breadcrumbs%} <li {%if activelink=="samples"%} class="breadcrumb-item active" {%else%} class="breadcrumb-item" {%endif%}> <a href="{{url_for('species.populations.samples.index')}}">Samples</a> </li> {%block lvl4_breadcrumbs%}{%endblock%} {%endblock%}